<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019caffe-63f1-7335-9a89-0df3865f066f,g:e3759097-4885-430c-af35-cb5c2c481ade-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.masimo.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="masi-20260404.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019caffe-66c4-748c-83c0-3fe9b1933ba6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019caffe-66c4-7072-b3e5-4e0b874a6843" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019caffe-66c4-748c-83c0-3fe9b1933ba6" xlink:to="loc_us-gaap_AssetsCurrent_019caffe-66c4-7072-b3e5-4e0b874a6843" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseNoncurrent_019caffe-66c4-7010-b22c-8b4c20f9eb09" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019caffe-66c4-748c-83c0-3fe9b1933ba6" xlink:to="loc_us-gaap_NetInvestmentInLeaseNoncurrent_019caffe-66c4-7010-b22c-8b4c20f9eb09" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCosts_019caffe-66c4-7565-83b1-ca41c862031f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredCosts"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019caffe-66c4-748c-83c0-3fe9b1933ba6" xlink:to="loc_us-gaap_DeferredCosts_019caffe-66c4-7565-83b1-ca41c862031f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019caffe-66c4-7c4d-a9dd-1e8272705a13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019caffe-66c4-748c-83c0-3fe9b1933ba6" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019caffe-66c4-7c4d-a9dd-1e8272705a13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-66c4-7c51-a94e-8327cb8241ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019caffe-66c4-748c-83c0-3fe9b1933ba6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-66c4-7c51-a94e-8327cb8241ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019caffe-66c4-7c7c-a40e-e46dab711be1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019caffe-66c4-748c-83c0-3fe9b1933ba6" xlink:to="loc_us-gaap_Goodwill_019caffe-66c4-7c7c-a40e-e46dab711be1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_019caffe-66c4-786d-a57f-6c435304a0aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019caffe-66c4-748c-83c0-3fe9b1933ba6" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_019caffe-66c4-786d-a57f-6c435304a0aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019caffe-66c4-714b-87c0-8a923637e231" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019caffe-66c4-748c-83c0-3fe9b1933ba6" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019caffe-66c4-714b-87c0-8a923637e231" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets_019caffe-66c4-7750-8183-0882dbf7300e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019caffe-66c4-748c-83c0-3fe9b1933ba6" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets_019caffe-66c4-7750-8183-0882dbf7300e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019caffe-66c4-7175-bab4-40ebb9d98a29" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019caffe-66c4-7239-bc4d-96635a524143" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019caffe-66c4-7175-bab4-40ebb9d98a29" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019caffe-66c4-7239-bc4d-96635a524143" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019caffe-66c4-70a4-b503-cd2ccaf5a132" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019caffe-66c4-7175-bab4-40ebb9d98a29" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019caffe-66c4-70a4-b503-cd2ccaf5a132" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019caffe-66c4-7794-92f7-db527721b538" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019caffe-66c4-7175-bab4-40ebb9d98a29" xlink:to="loc_us-gaap_InventoryNet_019caffe-66c4-7794-92f7-db527721b538" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019caffe-66c4-7e76-a340-b2090142deea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019caffe-66c4-7175-bab4-40ebb9d98a29" xlink:to="loc_us-gaap_OtherAssetsCurrent_019caffe-66c4-7e76-a340-b2090142deea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_019caffe-66c4-72ff-82d0-4c7d8c313f78" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019caffe-66c4-7175-bab4-40ebb9d98a29" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_019caffe-66c4-72ff-82d0-4c7d8c313f78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019caffe-66c4-7f93-a4da-193381b259de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValueOutstanding_019caffe-66c4-745c-a600-586c39293eaa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValueOutstanding"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019caffe-66c4-7f93-a4da-193381b259de" xlink:to="loc_us-gaap_PreferredStockValueOutstanding_019caffe-66c4-745c-a600-586c39293eaa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonValue_019caffe-66c4-72e5-9416-abdd58e537aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockCommonValue"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019caffe-66c4-7f93-a4da-193381b259de" xlink:to="loc_us-gaap_TreasuryStockCommonValue_019caffe-66c4-72e5-9416-abdd58e537aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019caffe-66c4-7065-b1dd-fb4e81df89ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019caffe-66c4-7f93-a4da-193381b259de" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019caffe-66c4-7065-b1dd-fb4e81df89ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValueOutstanding_019caffe-66c4-771b-9636-648f3d1f3c89" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValueOutstanding"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019caffe-66c4-7f93-a4da-193381b259de" xlink:to="loc_us-gaap_CommonStockValueOutstanding_019caffe-66c4-771b-9636-648f3d1f3c89" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_019caffe-66c4-7be7-815e-c6af584d91fb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019caffe-66c4-7f93-a4da-193381b259de" xlink:to="loc_us-gaap_AdditionalPaidInCapital_019caffe-66c4-7be7-815e-c6af584d91fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_019caffe-66c4-731c-a378-83b058aa6049" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019caffe-66c4-7f93-a4da-193381b259de" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_019caffe-66c4-731c-a378-83b058aa6049" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019caffe-66c4-7c0f-9c66-c92744e6b351" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019caffe-66c4-7a95-8661-30f950195ea4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019caffe-66c4-7c0f-9c66-c92744e6b351" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019caffe-66c4-7a95-8661-30f950195ea4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019caffe-66c4-7431-a290-1677fc8aecbf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019caffe-66c4-7c0f-9c66-c92744e6b351" xlink:to="loc_us-gaap_StockholdersEquity_019caffe-66c4-7431-a290-1677fc8aecbf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019caffe-66c4-72a2-9519-1b9bf9054cd7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019caffe-66c4-7c0f-9c66-c92744e6b351" xlink:to="loc_us-gaap_Liabilities_019caffe-66c4-72a2-9519-1b9bf9054cd7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019caffe-66c4-743b-9f39-31633e39d723" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_019caffe-66c4-78ec-b411-588a8364f563" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019caffe-66c4-743b-9f39-31633e39d723" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_019caffe-66c4-78ec-b411-588a8364f563" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenueCurrent_019caffe-66c4-74b4-9705-a7a7c2535cd9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredRevenueCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019caffe-66c4-743b-9f39-31633e39d723" xlink:to="loc_us-gaap_DeferredRevenueCurrent_019caffe-66c4-74b4-9705-a7a7c2535cd9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_019caffe-66c4-78a7-aa45-410e062d2d96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019caffe-66c4-743b-9f39-31633e39d723" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_019caffe-66c4-78a7-aa45-410e062d2d96" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_019caffe-66c4-7aac-b250-fbbd7e4df048" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019caffe-66c4-743b-9f39-31633e39d723" xlink:to="loc_us-gaap_AccountsPayableCurrent_019caffe-66c4-7aac-b250-fbbd7e4df048" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019caffe-66c4-7060-a7a2-2d62b92cb997" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesAndOtherLiabilities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019caffe-66c4-743b-9f39-31633e39d723" xlink:to="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019caffe-66c4-7060-a7a2-2d62b92cb997" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019caffe-66c4-7eb5-a1a2-2b76e77b255a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019caffe-66c4-7d26-af8f-f235788bb0cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019caffe-66c4-7eb5-a1a2-2b76e77b255a" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019caffe-66c4-7d26-af8f-f235788bb0cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_019caffe-66c4-7bfd-9cc1-04e59eda9cce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019caffe-66c4-7eb5-a1a2-2b76e77b255a" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_019caffe-66c4-7bfd-9cc1-04e59eda9cce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019caffe-66c4-7eb1-90a6-34b3bccf38f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019caffe-66c4-7eb5-a1a2-2b76e77b255a" xlink:to="loc_us-gaap_LiabilitiesCurrent_019caffe-66c4-7eb1-90a6-34b3bccf38f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019caffe-66c4-78bd-b99b-760b4326ec3d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019caffe-66c4-7eb5-a1a2-2b76e77b255a" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019caffe-66c4-78bd-b99b-760b4326ec3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019caffe-66c4-7850-856e-d1b3eca9ec2b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019caffe-66c4-7eb5-a1a2-2b76e77b255a" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019caffe-66c4-7850-856e-d1b3eca9ec2b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="masi-20260404.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019caffe-66c4-7210-b3d0-950e9cf8d7c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_019caffe-66c4-78d3-ae0d-380b5ff8b23c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019caffe-66c4-7210-b3d0-950e9cf8d7c9" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_019caffe-66c4-78d3-ae0d-380b5ff8b23c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_019caffe-66c4-7c90-9b76-f473940d9d44" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019caffe-66c4-7210-b3d0-950e9cf8d7c9" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_019caffe-66c4-7c90-9b76-f473940d9d44" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019caffe-66c4-71b8-b696-8f3af9503537" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019caffe-66c4-7d8d-a57b-f71da965c340" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019caffe-66c4-71b8-b696-8f3af9503537" xlink:to="loc_us-gaap_OperatingIncomeLoss_019caffe-66c4-7d8d-a57b-f71da965c340" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_019caffe-66c4-75e9-994f-900599daf7e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019caffe-66c4-71b8-b696-8f3af9503537" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_019caffe-66c4-75e9-994f-900599daf7e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_019caffe-66c4-73ce-996a-65882cd8ca3d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019caffe-66c4-7e6d-a667-d36de7075a6a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_019caffe-66c4-73ce-996a-65882cd8ca3d" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019caffe-66c4-7e6d-a667-d36de7075a6a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019caffe-66c4-7f22-a950-1787f1077af1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_019caffe-66c4-73ce-996a-65882cd8ca3d" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019caffe-66c4-7f22-a950-1787f1077af1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_019caffe-66c4-7093-8097-2f1ab4b6eaba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_019caffe-66c4-74d5-a972-29ccc747593d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareDiluted_019caffe-66c4-7093-8097-2f1ab4b6eaba" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_019caffe-66c4-74d5-a972-29ccc747593d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_019caffe-66c4-7b3a-b035-0be50d4934cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareDiluted_019caffe-66c4-7093-8097-2f1ab4b6eaba" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_019caffe-66c4-7b3a-b035-0be50d4934cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019caffe-66c4-7094-bf80-4f832087585d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019caffe-66c4-7dda-b247-61f6b2f01ede" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019caffe-66c4-7094-bf80-4f832087585d" xlink:to="loc_us-gaap_GrossProfit_019caffe-66c4-7dda-b247-61f6b2f01ede" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_019caffe-66c4-7368-86f4-9b6c505bbe4f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019caffe-66c4-7094-bf80-4f832087585d" xlink:to="loc_us-gaap_OperatingExpenses_019caffe-66c4-7368-86f4-9b6c505bbe4f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_019caffe-66c4-734a-a090-df4d929de365" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossRelatedToLitigationSettlement_019caffe-66c4-7534-b814-5b354e77d2b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossRelatedToLitigationSettlement"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_019caffe-66c4-734a-a090-df4d929de365" xlink:to="loc_us-gaap_GainLossRelatedToLitigationSettlement_019caffe-66c4-7534-b814-5b354e77d2b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_019caffe-66c4-7f7c-859b-9da6417eebf2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_019caffe-66c4-734a-a090-df4d929de365" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_019caffe-66c4-7f7c-859b-9da6417eebf2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019caffe-66c4-7d2e-a02a-7b8c5c33192e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_019caffe-66c4-734a-a090-df4d929de365" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019caffe-66c4-7d2e-a02a-7b8c5c33192e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019caffe-66c4-70ad-96e7-d774be496c28" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019caffe-66c4-7384-a78f-6d8f3656eb38" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_019caffe-66c4-70ad-96e7-d774be496c28" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019caffe-66c4-7384-a78f-6d8f3656eb38" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019caffe-66c4-7b9e-8e13-79e892dbd37c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_019caffe-66c4-70ad-96e7-d774be496c28" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019caffe-66c4-7b9e-8e13-79e892dbd37c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_019caffe-66c4-7922-b610-6883af19ab40" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_019caffe-66c4-7cc2-9acd-08541f04e084" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareBasic_019caffe-66c4-7922-b610-6883af19ab40" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_019caffe-66c4-7cc2-9acd-08541f04e084" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_019caffe-66c4-7396-adde-2e4c756f41d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareBasic_019caffe-66c4-7922-b610-6883af19ab40" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_019caffe-66c4-7396-adde-2e4c756f41d5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" xlink:type="simple" xlink:href="masi-20260404.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019caffe-66c4-7b0e-b490-3af302749545" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019caffe-66c4-76db-a9e2-b0e31bc13fea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019caffe-66c4-7b0e-b490-3af302749545" xlink:to="loc_us-gaap_NetIncomeLoss_019caffe-66c4-76db-a9e2-b0e31bc13fea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_019caffe-66c4-7a69-9e79-f910e6e5ee17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019caffe-66c4-7b0e-b490-3af302749545" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_019caffe-66c4-7a69-9e79-f910e6e5ee17" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax_019caffe-66c4-749e-b5e4-49d7c3fe4aae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019caffe-66c4-7b0e-b490-3af302749545" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax_019caffe-66c4-749e-b5e4-49d7c3fe4aae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_019dd5df-2f37-77f4-b9b7-3d972dcbc3fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019caffe-66c4-7b0e-b490-3af302749545" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_019dd5df-2f37-77f4-b9b7-3d972dcbc3fd" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="masi-20260404.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_019caffe-66c4-71d5-ab53-513e3076ccae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019caffe-66c4-7437-8c03-79d7258958ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_019caffe-66c4-71d5-ab53-513e3076ccae" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019caffe-66c4-7437-8c03-79d7258958ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireIntangibleAssets_019caffe-66c4-78fc-b1c9-988d16f764d6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireIntangibleAssets"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_019caffe-66c4-71d5-ab53-513e3076ccae" xlink:to="loc_us-gaap_PaymentsToAcquireIntangibleAssets_019caffe-66c4-78fc-b1c9-988d16f764d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_019caffe-66c4-7097-810c-509e2ea85fc8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_019caffe-66c4-71d5-ab53-513e3076ccae" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_019caffe-66c4-7097-810c-509e2ea85fc8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromLongtermInvestments_019caffe-66c4-7c07-9071-6f3cfc3f401d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForProceedsFromLongtermInvestments"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_019caffe-66c4-71d5-ab53-513e3076ccae" xlink:to="loc_us-gaap_PaymentsForProceedsFromLongtermInvestments_019caffe-66c4-7c07-9071-6f3cfc3f401d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019caffe-66c4-75e6-b075-af42b4b6a9cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-79ee-a6e5-ad726a5ba756" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019caffe-66c4-75e6-b075-af42b4b6a9cd" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-79ee-a6e5-ad726a5ba756" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_019caffe-66c4-7a2c-83da-329210d7a5b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019caffe-66c4-75e6-b075-af42b4b6a9cd" xlink:to="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_019caffe-66c4-7a2c-83da-329210d7a5b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019caffe-66c4-7c25-b1f9-7d36398a9c10" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_019caffe-66c4-71e7-8700-82ce2b2ae168" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019caffe-66c4-7c25-b1f9-7d36398a9c10" xlink:to="loc_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_019caffe-66c4-71e7-8700-82ce2b2ae168" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_019caffe-66c4-75cc-9115-d0c2d86d9d06" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019caffe-66c4-7c25-b1f9-7d36398a9c10" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_019caffe-66c4-75cc-9115-d0c2d86d9d06" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLeasePayments_019caffe-66c4-7aad-89c5-5043496b26aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromLeasePayments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_ProceedsFromLeasePayments_019caffe-66c4-7aad-89c5-5043496b26aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_019caffe-66c4-7bdb-9214-aaa852f72a33" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_019caffe-66c4-7bdb-9214-aaa852f72a33" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_019caffe-66c4-7e90-90ee-525037fe3d3e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_019caffe-66c4-7e90-90ee-525037fe3d3e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019caffe-66c4-7e03-afc4-15c65e0c56d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_ShareBasedCompensation_019caffe-66c4-7e03-afc4-15c65e0c56d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_019caffe-66c4-70a5-87b8-e6a2ded2705a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_019caffe-66c4-70a5-87b8-e6a2ded2705a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019caffe-66c4-7c62-8ed8-2a601642e3ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019caffe-66c4-7c62-8ed8-2a601642e3ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_019caffe-66c4-7543-bfd9-d969e0bcac9e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_019caffe-66c4-7543-bfd9-d969e0bcac9e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_019caffe-66c4-70d9-933d-1fbfff21a2c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_019caffe-66c4-70d9-933d-1fbfff21a2c3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_019caffe-66c4-7843-8269-a87bea4b063a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_019caffe-66c4-7843-8269-a87bea4b063a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019caffe-66c4-74fc-b92b-875a2a85ace8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019caffe-66c4-74fc-b92b-875a2a85ace8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_019caffe-66c4-7bcc-a47a-8395d81e30dd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_019caffe-66c4-7bcc-a47a-8395d81e30dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredCharges_019caffe-66c4-775e-a651-6c152f1f7ad6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInDeferredCharges"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredCharges_019caffe-66c4-775e-a651-6c152f1f7ad6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_019caffe-66c4-7915-a9f6-360d2615d044" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_019caffe-66c4-7915-a9f6-360d2615d044" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_019caffe-66c4-7127-902c-0de9749c4e92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_019caffe-66c4-7127-902c-0de9749c4e92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019caffe-66c4-720d-a4de-5fe072f894e4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="15" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019caffe-66c4-720d-a4de-5fe072f894e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_019caffe-66c4-7ef4-9a61-88aa7e2e6f74" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <link:calculationArc order="16" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_019caffe-66c4-7ef4-9a61-88aa7e2e6f74" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_019caffe-66c4-7058-8f35-41daa07b8fe4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_019caffe-66c4-7058-8f35-41daa07b8fe4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019caffe-66c4-7d78-b94a-bc0412fb3a39" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019caffe-66c4-7d78-b94a-bc0412fb3a39" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019caffe-66c4-790f-8b4d-7037c0fed9c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="19" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019caffe-66c4-790f-8b4d-7037c0fed9c1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties_019caffe-66c4-7ddf-b9a5-cfc18246d3e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties"/>
    <link:calculationArc order="20" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_019caffe-66c4-794c-b297-0330b71871b3" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties_019caffe-66c4-7ddf-b9a5-cfc18246d3e6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_019caffe-66c4-77ba-aaf4-3ab9aae91f9d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_019caffe-66c4-7228-942d-0fb2d0d4915e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_019caffe-66c4-77ba-aaf4-3ab9aae91f9d" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_019caffe-66c4-7228-942d-0fb2d0d4915e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_019caffe-66c4-7e5f-84c0-fb2a836d1f38" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfLinesOfCredit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_019caffe-66c4-77ba-aaf4-3ab9aae91f9d" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_019caffe-66c4-7e5f-84c0-fb2a836d1f38" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_019caffe-66c4-7898-b4bc-d35c75532cb0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_019caffe-66c4-77ba-aaf4-3ab9aae91f9d" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_019caffe-66c4-7898-b4bc-d35c75532cb0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_019caffe-66c4-7a67-8453-64570c17315d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_019caffe-66c4-77ba-aaf4-3ab9aae91f9d" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_019caffe-66c4-7a67-8453-64570c17315d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019caffe-66c4-7e63-a660-9939d290726c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019caffe-66c4-7366-baaf-fa522a84d521" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019caffe-66c4-7e63-a660-9939d290726c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019caffe-66c4-7366-baaf-fa522a84d521" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019caffe-66c4-7d87-9cb9-d3049cb55f24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019caffe-66c4-7e63-a660-9939d290726c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019caffe-66c4-7d87-9cb9-d3049cb55f24" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019caffe-66c4-7d86-9af4-961294ebc8f7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019caffe-66c4-7e63-a660-9939d290726c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019caffe-66c4-7d86-9af4-961294ebc8f7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019caffe-66c4-76d5-ace5-19278f8d6809" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019caffe-66c4-7e63-a660-9939d290726c" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019caffe-66c4-76d5-ace5-19278f8d6809" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019caffe-66c4-770a-925a-6cda91f5008e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations_019caffe-66c4-7de0-8ab7-be02c669e96a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019caffe-66c4-770a-925a-6cda91f5008e" xlink:to="loc_us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations_019caffe-66c4-7de0-8ab7-be02c669e96a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_019caffe-66c4-7297-85b0-9b0c17d4b8bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019caffe-66c4-770a-925a-6cda91f5008e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_019caffe-66c4-7297-85b0-9b0c17d4b8bc" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/SummaryofSignificantAccountingPoliciesScheduleofComputationofBasicandDilutedNetIncomeLossPerShareDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#SummaryofSignificantAccountingPoliciesScheduleofComputationofBasicandDilutedNetIncomeLossPerShareDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/SummaryofSignificantAccountingPoliciesScheduleofComputationofBasicandDilutedNetIncomeLossPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019caffe-66c4-7763-b735-5e5b24ee733e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019caffe-66c4-7f34-95dd-f3f0cefbd074" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019caffe-66c4-7763-b735-5e5b24ee733e" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019caffe-66c4-7f34-95dd-f3f0cefbd074" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019caffe-66c4-7b7f-b365-16d0dbdfef73" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019caffe-66c4-7763-b735-5e5b24ee733e" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019caffe-66c4-7b7f-b365-16d0dbdfef73" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/SummaryofSignificantAccountingPoliciesScheduleofSupplementalCashFlowInformationDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#SummaryofSignificantAccountingPoliciesScheduleofSupplementalCashFlowInformationDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/SummaryofSignificantAccountingPoliciesScheduleofSupplementalCashFlowInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019caffe-66c4-730f-a73b-d0491e70da04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019caffe-66c4-78c5-be10-39b487eb3ec8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019caffe-66c4-730f-a73b-d0491e70da04" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019caffe-66c4-78c5-be10-39b487eb3ec8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash_019caffe-66c4-7d59-82cf-9e32aae6c858" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedCash"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019caffe-66c4-730f-a73b-d0491e70da04" xlink:to="loc_us-gaap_RestrictedCash_019caffe-66c4-7d59-82cf-9e32aae6c858" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/InventoriesDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#InventoriesDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/InventoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019caffe-66c4-7886-b5c1-f5e8c111ebef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_019caffe-66c4-78f5-b7fc-9f2011c6466b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019caffe-66c4-7886-b5c1-f5e8c111ebef" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_019caffe-66c4-78f5-b7fc-9f2011c6466b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_019caffe-66c4-737b-a237-a4c6c9f41d2b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryWorkInProcessNetOfReserves"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019caffe-66c4-7886-b5c1-f5e8c111ebef" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_019caffe-66c4-737b-a237-a4c6c9f41d2b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019caffe-66c4-71e9-894d-c531fb840aac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019caffe-66c4-7886-b5c1-f5e8c111ebef" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019caffe-66c4-71e9-894d-c531fb840aac" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/OtherCurrentAssetsDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#OtherCurrentAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/OtherCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019caffe-66c4-7f3b-a405-b734b71c6a9c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_019caffe-66c4-7648-a7a5-522859b21dcd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_019caffe-66c4-7f3b-a405-b734b71c6a9c" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_019caffe-66c4-7648-a7a5-522859b21dcd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseCurrent_019caffe-66c4-7488-84cf-dcbf8dbb32dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_019caffe-66c4-7f3b-a405-b734b71c6a9c" xlink:to="loc_us-gaap_NetInvestmentInLeaseCurrent_019caffe-66c4-7488-84cf-dcbf8dbb32dc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidTaxes_019caffe-66c4-7371-ba19-e60f0caa7022" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidTaxes"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_019caffe-66c4-7f3b-a405-b734b71c6a9c" xlink:to="loc_us-gaap_PrepaidTaxes_019caffe-66c4-7371-ba19-e60f0caa7022" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValueAddedTaxReceivableCurrent_019caffe-66c4-7aaf-af4b-7170dee837e4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValueAddedTaxReceivableCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_019caffe-66c4-7f3b-a405-b734b71c6a9c" xlink:to="loc_us-gaap_ValueAddedTaxReceivableCurrent_019caffe-66c4-7aaf-af4b-7170dee837e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidRoyalties_019caffe-66c4-7206-80ab-ff705bde0fdb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidRoyalties"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_019caffe-66c4-7f3b-a405-b734b71c6a9c" xlink:to="loc_us-gaap_PrepaidRoyalties_019caffe-66c4-7206-80ab-ff705bde0fdb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_019caffe-66c4-724d-85fc-0b479af46d9e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_019caffe-66c4-7f3b-a405-b734b71c6a9c" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_019caffe-66c4-724d-85fc-0b479af46d9e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousCurrent_019caffe-66c4-7608-9db9-904dea238d60" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsMiscellaneousCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_019caffe-66c4-7f3b-a405-b734b71c6a9c" xlink:to="loc_us-gaap_OtherAssetsMiscellaneousCurrent_019caffe-66c4-7608-9db9-904dea238d60" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/LeaseReceivableScheduleofLeaseReceivableFromSalesTypeLeasesDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#LeaseReceivableScheduleofLeaseReceivableFromSalesTypeLeasesDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/LeaseReceivableScheduleofLeaseReceivableFromSalesTypeLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-71db-8c6b-58d3bddde6a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseLeaseReceivable"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019caffe-66c4-72f1-af7e-ce53507d6c11" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-71db-8c6b-58d3bddde6a4" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019caffe-66c4-72f1-af7e-ce53507d6c11" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_SalesTypeLeaseAllowanceForCreditLoss_019caffe-66c4-78f5-83b9-2f0eaa2dd60f" xlink:href="masi-20260404.xsd#masi_SalesTypeLeaseAllowanceForCreditLoss"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-71db-8c6b-58d3bddde6a4" xlink:to="loc_masi_SalesTypeLeaseAllowanceForCreditLoss_019caffe-66c4-78f5-83b9-2f0eaa2dd60f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/LeaseReceivableScheduleofLeaseReceivableFromSalesTypeLeasesDetails_1" xlink:type="simple" xlink:href="masi-20260404.xsd#LeaseReceivableScheduleofLeaseReceivableFromSalesTypeLeasesDetails_1"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/LeaseReceivableScheduleofLeaseReceivableFromSalesTypeLeasesDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-782d-a873-9c995addeb24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseLeaseReceivable"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseNoncurrent_019caffe-66c4-7c42-b1dc-d5107f3fe0b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-782d-a873-9c995addeb24" xlink:to="loc_us-gaap_NetInvestmentInLeaseNoncurrent_019caffe-66c4-7c42-b1dc-d5107f3fe0b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseCurrent_019caffe-66c4-7e6e-a3fb-e64f54adc0ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-782d-a873-9c995addeb24" xlink:to="loc_us-gaap_NetInvestmentInLeaseCurrent_019caffe-66c4-7e6e-a3fb-e64f54adc0ed" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/LeaseReceivableScheduleofEstimatedFutureMaturitiesofCustomerSalesTypeLeaseReceivablesandOperatingLeasePaymentsDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#LeaseReceivableScheduleofEstimatedFutureMaturitiesofCustomerSalesTypeLeaseReceivablesandOperatingLeasePaymentsDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/LeaseReceivableScheduleofEstimatedFutureMaturitiesofCustomerSalesTypeLeaseReceivablesandOperatingLeasePaymentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-7774-8919-cc487b15f562" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseLeaseReceivable"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_019caffe-66c4-77cf-80bc-7495ab4dc091" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-7774-8919-cc487b15f562" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_019caffe-66c4-77cf-80bc-7495ab4dc091" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear_019caffe-66c4-7caa-8b77-45bf8d039b65" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-7774-8919-cc487b15f562" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear_019caffe-66c4-7caa-8b77-45bf8d039b65" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_019caffe-66c4-7d4c-b53b-816faa65a1a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-7774-8919-cc487b15f562" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_019caffe-66c4-7d4c-b53b-816faa65a1a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths_019caffe-66c4-7841-937d-26b3df5b7a33" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-7774-8919-cc487b15f562" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths_019caffe-66c4-7841-937d-26b3df5b7a33" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour_019caffe-66c4-7873-8076-ebbd08a7b788" xlink:href="masi-20260404.xsd#masi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-7774-8919-cc487b15f562" xlink:to="loc_masi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour_019caffe-66c4-7873-8076-ebbd08a7b788" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears_019caffe-66c4-75cc-b798-6bf79f887e52" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-7774-8919-cc487b15f562" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears_019caffe-66c4-75cc-b798-6bf79f887e52" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019caffe-66c4-7595-91c0-651eb412140b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear_019caffe-66c4-7db9-a3e3-6cf4dad226cf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019caffe-66c4-7595-91c0-651eb412140b" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear_019caffe-66c4-7db9-a3e3-6cf4dad226cf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths_019caffe-66c4-76be-981c-f03cb9c3e52a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019caffe-66c4-7595-91c0-651eb412140b" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths_019caffe-66c4-76be-981c-f03cb9c3e52a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears_019caffe-66c4-7fd7-8f43-6473fb192fa9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019caffe-66c4-7595-91c0-651eb412140b" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears_019caffe-66c4-7fd7-8f43-6473fb192fa9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears_019caffe-66c4-74ff-882d-2ef4b1476931" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019caffe-66c4-7595-91c0-651eb412140b" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears_019caffe-66c4-74ff-882d-2ef4b1476931" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears_019caffe-66c4-77db-8e86-50098ac90824" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019caffe-66c4-7595-91c0-651eb412140b" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears_019caffe-66c4-77db-8e86-50098ac90824" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_LessorOperatingLeasePaymentToBeReceivedAfterYearFour_019caffe-66c4-7cf5-b658-1b461c8240a1" xlink:href="masi-20260404.xsd#masi_LessorOperatingLeasePaymentToBeReceivedAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019caffe-66c4-7595-91c0-651eb412140b" xlink:to="loc_masi_LessorOperatingLeasePaymentToBeReceivedAfterYearFour_019caffe-66c4-7cf5-b658-1b461c8240a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseNetInvestmentInLease_019caffe-66c4-7d41-8bbf-85b51d27f64b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseNetInvestmentInLease"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivableUndiscountedExcessAmount_019caffe-66c4-7bd4-b932-591a375bdf88" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivableUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseNetInvestmentInLease_019caffe-66c4-7d41-8bbf-85b51d27f64b" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivableUndiscountedExcessAmount_019caffe-66c4-7bd4-b932-591a375bdf88" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-7506-9b82-c2b685ecf65a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseLeaseReceivable"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseNetInvestmentInLease_019caffe-66c4-7d41-8bbf-85b51d27f64b" xlink:to="loc_us-gaap_SalesTypeLeaseLeaseReceivable_019caffe-66c4-7506-9b82-c2b685ecf65a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/DeferredCostsandOtherContractAssetsScheduleofDeferredCostsandOtherContractAssetsDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#DeferredCostsandOtherContractAssetsScheduleofDeferredCostsandOtherContractAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/DeferredCostsandOtherContractAssetsScheduleofDeferredCostsandOtherContractAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCostsAndOtherAssets_019caffe-66c4-7628-ada3-04f3f1b7ab17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredCostsAndOtherAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_DeferredSalesCommissions_019caffe-66c4-70d7-8c76-4b34665c6f0e" xlink:href="masi-20260404.xsd#masi_DeferredSalesCommissions"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCostsAndOtherAssets_019caffe-66c4-7628-ada3-04f3f1b7ab17" xlink:to="loc_masi_DeferredSalesCommissions_019caffe-66c4-70d7-8c76-4b34665c6f0e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnbilledContractsReceivable_019caffe-66c4-76e3-a7f8-8e3e4a8a1788" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnbilledContractsReceivable"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCostsAndOtherAssets_019caffe-66c4-7628-ada3-04f3f1b7ab17" xlink:to="loc_us-gaap_UnbilledContractsReceivable_019caffe-66c4-76e3-a7f8-8e3e4a8a1788" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_DeferredCostOfGoodsSold_019caffe-66c4-7e58-a454-fe30a5b2386e" xlink:href="masi-20260404.xsd#masi_DeferredCostOfGoodsSold"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCostsAndOtherAssets_019caffe-66c4-7628-ada3-04f3f1b7ab17" xlink:to="loc_masi_DeferredCostOfGoodsSold_019caffe-66c4-7e58-a454-fe30a5b2386e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_EquipmentLeasedToCustomers_019caffe-66c4-77d0-a667-6f13cc8d5438" xlink:href="masi-20260404.xsd#masi_EquipmentLeasedToCustomers"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCostsAndOtherAssets_019caffe-66c4-7628-ada3-04f3f1b7ab17" xlink:to="loc_masi_EquipmentLeasedToCustomers_019caffe-66c4-77d0-a667-6f13cc8d5438" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/PropertyandEquipmentnetScheduleofPropertyandEquipmentNetDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#PropertyandEquipmentnetScheduleofPropertyandEquipmentNetDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/PropertyandEquipmentnetScheduleofPropertyandEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019caffe-66c4-745c-aaa3-73f1c0ecbe5f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_019caffe-66c4-766d-a23a-20f8440cfe7a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_019caffe-66c4-745c-aaa3-73f1c0ecbe5f" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_019caffe-66c4-766d-a23a-20f8440cfe7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019caffe-66c4-7f71-bd29-3f73859e5a53" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_019caffe-66c4-745c-aaa3-73f1c0ecbe5f" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019caffe-66c4-7f71-bd29-3f73859e5a53" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/IntangibleAssetsnetScheduleofIntangibleAssetsNetDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#IntangibleAssetsnetScheduleofIntangibleAssetsNetDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/IntangibleAssetsnetScheduleofIntangibleAssetsNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-66c4-74f2-a976-7d9143db2651" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019caffe-66c4-7f2c-bf43-6a8ef86547ef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-66c4-74f2-a976-7d9143db2651" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019caffe-66c4-7f2c-bf43-6a8ef86547ef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019caffe-66c4-7b32-9307-27a978484e9f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-66c4-74f2-a976-7d9143db2651" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019caffe-66c4-7b32-9307-27a978484e9f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/IntangibleAssetsnetScheduleofEstimatedAmortizationExpenseDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#IntangibleAssetsnetScheduleofEstimatedAmortizationExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/IntangibleAssetsnetScheduleofEstimatedAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-6785-73b1-937e-94385b6cc36f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_019caffe-6785-74d8-a835-94a189ac462b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-6785-73b1-937e-94385b6cc36f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_019caffe-6785-74d8-a835-94a189ac462b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_019caffe-6785-7227-b883-339d5111c29f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-6785-73b1-937e-94385b6cc36f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_019caffe-6785-7227-b883-339d5111c29f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_019caffe-6785-7959-b30f-c655e2400dd2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-6785-73b1-937e-94385b6cc36f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_019caffe-6785-7959-b30f-c655e2400dd2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_019caffe-6785-7db8-9ab3-95324544aa7f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-6785-73b1-937e-94385b6cc36f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_019caffe-6785-7db8-9ab3-95324544aa7f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_019caffe-6785-7dd2-bfce-695e8d062eab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-6785-73b1-937e-94385b6cc36f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_019caffe-6785-7dd2-bfce-695e8d062eab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour_019caffe-6785-717a-afba-ad23412690f2" xlink:href="masi-20260404.xsd#masi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019caffe-6785-73b1-937e-94385b6cc36f" xlink:to="loc_masi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour_019caffe-6785-717a-afba-ad23412690f2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/LesseeROUAssetsandLeaseLiabilitiesScheduleofBalanceSheetClassificationsforAmountsRelatedtotheOperatingLeasesDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#LesseeROUAssetsandLeaseLiabilitiesScheduleofBalanceSheetClassificationsforAmountsRelatedtotheOperatingLeasesDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/LesseeROUAssetsandLeaseLiabilitiesScheduleofBalanceSheetClassificationsforAmountsRelatedtotheOperatingLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_019caffe-6785-7723-9e8d-b0ccc368732c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019caffe-6785-7891-876b-cfb792bc7f14" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeaseLiability_019caffe-6785-7723-9e8d-b0ccc368732c" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019caffe-6785-7891-876b-cfb792bc7f14" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019caffe-6785-747d-9cff-e542be04e5e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeaseLiability_019caffe-6785-7723-9e8d-b0ccc368732c" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019caffe-6785-747d-9cff-e542be04e5e3" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/LesseeROUAssetsandLeaseLiabilitiesScheduleofEstimatedFutureOperatingLeasePaymentsDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#LesseeROUAssetsandLeaseLiabilitiesScheduleofEstimatedFutureOperatingLeasePaymentsDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/LesseeROUAssetsandLeaseLiabilitiesScheduleofEstimatedFutureOperatingLeasePaymentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caffe-6785-7163-a3e8-6bb40119045e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_019caffe-6785-746f-944f-f222455f0d00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caffe-6785-7163-a3e8-6bb40119045e" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_019caffe-6785-746f-944f-f222455f0d00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_019caffe-6785-76f6-ab6e-60d274eab274" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caffe-6785-7163-a3e8-6bb40119045e" xlink:to="loc_us-gaap_OperatingLeaseLiability_019caffe-6785-76f6-ab6e-60d274eab274" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/LesseeROUAssetsandLeaseLiabilitiesScheduleofEstimatedFutureOperatingLeasePaymentsDetails_1" xlink:type="simple" xlink:href="masi-20260404.xsd#LesseeROUAssetsandLeaseLiabilitiesScheduleofEstimatedFutureOperatingLeasePaymentsDetails_1"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/LesseeROUAssetsandLeaseLiabilitiesScheduleofEstimatedFutureOperatingLeasePaymentsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caffe-6785-751b-9f07-0550f9ef7399" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_019caffe-6785-7191-9359-7cfd75f72e5a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caffe-6785-751b-9f07-0550f9ef7399" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_019caffe-6785-7191-9359-7cfd75f72e5a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_019caffe-6785-755e-9a14-5dadfb7a85ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caffe-6785-751b-9f07-0550f9ef7399" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_019caffe-6785-755e-9a14-5dadfb7a85ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_019caffe-6785-7cce-aa57-4934dd0c738b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caffe-6785-751b-9f07-0550f9ef7399" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_019caffe-6785-7cce-aa57-4934dd0c738b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_019caffe-6785-796b-9f98-5d4def0799d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caffe-6785-751b-9f07-0550f9ef7399" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_019caffe-6785-796b-9f98-5d4def0799d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_019caffe-6785-72a1-a6de-c403a321e11c" xlink:href="masi-20260404.xsd#masi_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caffe-6785-751b-9f07-0550f9ef7399" xlink:to="loc_masi_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_019caffe-6785-72a1-a6de-c403a321e11c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_019caffe-6785-7cc4-b29a-aaa2c40c62aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caffe-6785-751b-9f07-0550f9ef7399" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_019caffe-6785-7cc4-b29a-aaa2c40c62aa" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/OtherNonCurrentAssetsDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#OtherNonCurrentAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/OtherNonCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019caffe-6785-74ef-a3b9-d67973992d85" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019caffe-6785-7330-b070-b9bc1eeee103" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_019caffe-6785-74ef-a3b9-d67973992d85" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019caffe-6785-7330-b070-b9bc1eeee103" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_019caffe-6785-7520-8504-96ad1c2b79fe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_019caffe-6785-74ef-a3b9-d67973992d85" xlink:to="loc_us-gaap_EquityMethodInvestments_019caffe-6785-7520-8504-96ad1c2b79fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsAssetsNoncurrent_019caffe-6785-7d75-a494-7e1ac3d46dc3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepositsAssetsNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_019caffe-6785-74ef-a3b9-d67973992d85" xlink:to="loc_us-gaap_DepositsAssetsNoncurrent_019caffe-6785-7d75-a494-7e1ac3d46dc3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsNoncurrent_019caffe-6785-7562-81a2-b7ef58b2df79" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAssetsNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_019caffe-6785-74ef-a3b9-d67973992d85" xlink:to="loc_us-gaap_DerivativeAssetsNoncurrent_019caffe-6785-7562-81a2-b7ef58b2df79" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/DeferredRevenueandOtherContractLiabilitiesCurrentScheduleofDeferredRevenueandOtherContractLiabilitiesCurrentDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#DeferredRevenueandOtherContractLiabilitiesCurrentScheduleofDeferredRevenueandOtherContractLiabilitiesCurrentDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/DeferredRevenueandOtherContractLiabilitiesCurrentScheduleofDeferredRevenueandOtherContractLiabilitiesCurrentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesAndDeferredRevenueNoncurrent_019caffe-6785-7b8c-83c9-cd337d310b3c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesAndDeferredRevenueNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_019caffe-6785-7bca-a846-0ba009aabf37" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesAndDeferredRevenueNoncurrent_019caffe-6785-7b8c-83c9-cd337d310b3c" xlink:to="loc_us-gaap_ContractWithCustomerLiability_019caffe-6785-7bca-a846-0ba009aabf37" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_AccruedRebatesAndAllowances_019caffe-6785-7bdb-9fa4-f00ddbc6eb92" xlink:href="masi-20260404.xsd#masi_AccruedRebatesAndAllowances"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesAndDeferredRevenueNoncurrent_019caffe-6785-7b8c-83c9-cd337d310b3c" xlink:to="loc_masi_AccruedRebatesAndAllowances_019caffe-6785-7bdb-9fa4-f00ddbc6eb92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableOtherCurrentAndNoncurrent_019caffe-6785-7a07-80ff-aa13826543f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableOtherCurrentAndNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesAndDeferredRevenueNoncurrent_019caffe-6785-7b8c-83c9-cd337d310b3c" xlink:to="loc_us-gaap_AccountsPayableOtherCurrentAndNoncurrent_019caffe-6785-7a07-80ff-aa13826543f0" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/OtherCurrentLiabilitiesDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#OtherCurrentLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/OtherCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019caffe-6785-7767-953e-ad7a1dd9fa4f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesAndOtherLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_019caffe-6785-7185-9616-aeab80251b5d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019caffe-6785-7767-953e-ad7a1dd9fa4f" xlink:to="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_019caffe-6785-7185-9616-aeab80251b5d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedProfessionalFeesCurrentAndNoncurrent_019caffe-6785-7f67-8667-483e6b6efd98" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedProfessionalFeesCurrentAndNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019caffe-6785-7767-953e-ad7a1dd9fa4f" xlink:to="loc_us-gaap_AccruedProfessionalFeesCurrentAndNoncurrent_019caffe-6785-7f67-8667-483e6b6efd98" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_019caffe-6785-7d92-bdea-77ede56e189e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019caffe-6785-7767-953e-ad7a1dd9fa4f" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_019caffe-6785-7d92-bdea-77ede56e189e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_019caffe-6785-76a2-9eba-73411ab10512" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019caffe-6785-7767-953e-ad7a1dd9fa4f" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_019caffe-6785-76a2-9eba-73411ab10512" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019caffe-6785-7d32-b414-2a4c1d21b3c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019caffe-6785-7767-953e-ad7a1dd9fa4f" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019caffe-6785-7d32-b414-2a4c1d21b3c7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_019caffe-6785-7270-873d-a3ee14828654" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019caffe-6785-7767-953e-ad7a1dd9fa4f" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_019caffe-6785-7270-873d-a3ee14828654" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_019caffe-6785-7ccd-a75c-8ec8280d4e08" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019caffe-6785-7767-953e-ad7a1dd9fa4f" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_019caffe-6785-7ccd-a75c-8ec8280d4e08" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019caffe-6785-7610-9826-fd134cf6109f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019caffe-6785-7767-953e-ad7a1dd9fa4f" xlink:to="loc_us-gaap_LongTermDebtCurrent_019caffe-6785-7610-9826-fd134cf6109f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/DebtScheduleofDebtDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#DebtScheduleofDebtDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/DebtScheduleofDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_019caffe-6785-73bf-b0e2-4073c58ca178" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtAndCapitalLeaseObligations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019caffe-6785-7d5e-aab0-59bf855f4a81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_019caffe-6785-73bf-b0e2-4073c58ca178" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019caffe-6785-7d5e-aab0-59bf855f4a81" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_019caffe-6785-75d3-ad0f-c4bf78ff033c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_019caffe-6785-73bf-b0e2-4073c58ca178" xlink:to="loc_us-gaap_DebtCurrent_019caffe-6785-75d3-ad0f-c4bf78ff033c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/DebtScheduleofAggregateMaturitiesofPrincipalDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#DebtScheduleofAggregateMaturitiesofPrincipalDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/DebtScheduleofAggregateMaturitiesofPrincipalDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019caffe-6785-7318-960d-20208a39ac92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019caffe-6785-7c11-8a87-eb54b3a36897" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019caffe-6785-7318-960d-20208a39ac92" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019caffe-6785-7c11-8a87-eb54b3a36897" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019caffe-6785-7eee-ba37-4c20c65f2930" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019caffe-6785-7318-960d-20208a39ac92" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019caffe-6785-7eee-ba37-4c20c65f2930" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019caffe-6785-7267-ab71-a56cd5cbc422" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019caffe-6785-7318-960d-20208a39ac92" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019caffe-6785-7267-ab71-a56cd5cbc422" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_LongTermDebtMaturityAfterYearFour_019caffe-6785-7a6a-8cad-d23d03d11040" xlink:href="masi-20260404.xsd#masi_LongTermDebtMaturityAfterYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019caffe-6785-7318-960d-20208a39ac92" xlink:to="loc_masi_LongTermDebtMaturityAfterYearFour_019caffe-6785-7a6a-8cad-d23d03d11040" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019caffe-6785-79ec-8f97-db2f843d3dc2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019caffe-6785-7318-960d-20208a39ac92" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019caffe-6785-79ec-8f97-db2f843d3dc2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019caffe-6785-75bc-a470-130286811f5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019caffe-6785-7318-960d-20208a39ac92" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019caffe-6785-75bc-a470-130286811f5b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/OtherNonCurrentLiabilitiesDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#OtherNonCurrentLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/OtherNonCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCreditsAndOtherLiabilities_019caffe-6785-7c91-8c12-0ca67754ef2b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredCreditsAndOtherLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_UnrecognizedTaxBenefitsLiabilitiesNoncurrent_019caffe-6785-77cf-bf03-3104548b0be9" xlink:href="masi-20260404.xsd#masi_UnrecognizedTaxBenefitsLiabilitiesNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCreditsAndOtherLiabilities_019caffe-6785-7c91-8c12-0ca67754ef2b" xlink:to="loc_masi_UnrecognizedTaxBenefitsLiabilitiesNoncurrent_019caffe-6785-77cf-bf03-3104548b0be9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019caffe-6785-7523-b902-8766746efb7b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCreditsAndOtherLiabilities_019caffe-6785-7c91-8c12-0ca67754ef2b" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019caffe-6785-7523-b902-8766746efb7b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_019caffe-6785-709a-8fd4-657c2f1ef64c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCreditsAndOtherLiabilities_019caffe-6785-7c91-8c12-0ca67754ef2b" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_019caffe-6785-709a-8fd4-657c2f1ef64c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent_019caffe-6785-7bbf-b68a-4bc2a4525762" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCreditsAndOtherLiabilities_019caffe-6785-7c91-8c12-0ca67754ef2b" xlink:to="loc_us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent_019caffe-6785-7bbf-b68a-4bc2a4525762" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_IncomeTaxPayableNoncurrent_019caffe-6785-7e90-b65e-44b13d3e262a" xlink:href="masi-20260404.xsd#masi_IncomeTaxPayableNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCreditsAndOtherLiabilities_019caffe-6785-7c91-8c12-0ca67754ef2b" xlink:to="loc_masi_IncomeTaxPayableNoncurrent_019caffe-6785-7e90-b65e-44b13d3e262a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesNoncurrent_019dbf17-434c-7662-8e5d-a1f840eb5de3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAccruedLiabilitiesNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCreditsAndOtherLiabilities_019caffe-6785-7c91-8c12-0ca67754ef2b" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesNoncurrent_019dbf17-434c-7662-8e5d-a1f840eb5de3" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/DiscontinuedOperationsScheduleofComponentsofIncomeFromDiscontinuedOperationsDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#DiscontinuedOperationsScheduleofComponentsofIncomeFromDiscontinuedOperationsDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/DiscontinuedOperationsScheduleofComponentsofIncomeFromDiscontinuedOperationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_019caffe-6785-7d39-bdf8-7f36c6a458a0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss_019caffe-6785-7ed9-91c3-f63c949c17d3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_019caffe-6785-7d39-bdf8-7f36c6a458a0" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss_019caffe-6785-7ed9-91c3-f63c949c17d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense_019caffe-6785-71dc-af98-cffdfe6eca2d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_019caffe-6785-7d39-bdf8-7f36c6a458a0" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense_019caffe-6785-71dc-af98-cffdfe6eca2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_DisposalGroupIncludingDiscontinuedOperationAssetImpairmentCharges_019caffe-6785-7811-bf3c-282999e35d5f" xlink:href="masi-20260404.xsd#masi_DisposalGroupIncludingDiscontinuedOperationAssetImpairmentCharges"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_019caffe-6785-7d39-bdf8-7f36c6a458a0" xlink:to="loc_masi_DisposalGroupIncludingDiscontinuedOperationAssetImpairmentCharges_019caffe-6785-7811-bf3c-282999e35d5f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopmentExpenses_019caffe-6785-7756-9076-ee7229b0fd32" xlink:href="masi-20260404.xsd#masi_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopmentExpenses"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_019caffe-6785-7d39-bdf8-7f36c6a458a0" xlink:to="loc_masi_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopmentExpenses_019caffe-6785-7756-9076-ee7229b0fd32" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_019caffe-6785-7fdc-9e03-0f6369095600" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_019caffe-6785-7588-950e-a59e573aae66" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_019caffe-6785-7fdc-9e03-0f6369095600" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_019caffe-6785-7588-950e-a59e573aae66" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax_019caffe-6785-7d30-aaf3-a547107671e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_019caffe-6785-7fdc-9e03-0f6369095600" xlink:to="loc_us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax_019caffe-6785-7d30-aaf3-a547107671e3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_DisposalGroupIncludingDiscontinuedOperationUnrealizedForeignCurrencyTranslation_019caffe-6785-7148-ba96-46754bdab7ce" xlink:href="masi-20260404.xsd#masi_DisposalGroupIncludingDiscontinuedOperationUnrealizedForeignCurrencyTranslation"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_019caffe-6785-7fdc-9e03-0f6369095600" xlink:to="loc_masi_DisposalGroupIncludingDiscontinuedOperationUnrealizedForeignCurrencyTranslation_019caffe-6785-7148-ba96-46754bdab7ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_DisposalGroupIncludingDiscontinuedOperationOtherNonOperatingIncomeLoss_019de1d2-29cc-7a27-aeb1-fb46f870148d" xlink:href="masi-20260404.xsd#masi_DisposalGroupIncludingDiscontinuedOperationOtherNonOperatingIncomeLoss"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_019caffe-6785-7fdc-9e03-0f6369095600" xlink:to="loc_masi_DisposalGroupIncludingDiscontinuedOperationOtherNonOperatingIncomeLoss_019de1d2-29cc-7a27-aeb1-fb46f870148d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss_019caffe-6785-7481-bae2-09666b5ef8c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_019caffe-6785-7d83-904f-78efdcf2e561" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss_019caffe-6785-7481-bae2-09666b5ef8c4" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_019caffe-6785-7d83-904f-78efdcf2e561" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_019caffe-6785-72fb-8693-ad2733cdbaae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss_019caffe-6785-7481-bae2-09666b5ef8c4" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_019caffe-6785-72fb-8693-ad2733cdbaae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsImpairmentChargesGross_019caffe-6785-76b7-88c4-a2aaa8d7e01b" xlink:href="masi-20260404.xsd#masi_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsImpairmentChargesGross"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss_019caffe-6785-7481-bae2-09666b5ef8c4" xlink:to="loc_masi_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsImpairmentChargesGross_019caffe-6785-76b7-88c4-a2aaa8d7e01b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_019caffe-6785-7877-8fab-0eb086b862b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod_019caffe-6785-7921-a137-1067a329ab4d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_019caffe-6785-7877-8fab-0eb086b862b7" xlink:to="loc_us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod_019caffe-6785-7921-a137-1067a329ab4d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_019caffe-6785-7e9d-bec5-984f8cbb746a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_019caffe-6785-7877-8fab-0eb086b862b7" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_019caffe-6785-7e9d-bec5-984f8cbb746a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/DiscontinuedOperationsScheduleofAssetsandLiabilitiesoftheDiscontinuedOperationsDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#DiscontinuedOperationsScheduleofAssetsandLiabilitiesoftheDiscontinuedOperationsDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/DiscontinuedOperationsScheduleofAssetsandLiabilitiesoftheDiscontinuedOperationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_019caffe-6785-7074-806a-e0d6a4f21e98" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_019caffe-6785-7d8a-8adc-8c512bc6c03e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_019caffe-6785-7074-806a-e0d6a4f21e98" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_019caffe-6785-7d8a-8adc-8c512bc6c03e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_masi_DisposalGroupIncludingDiscontinuedOperationAccruedCompensation_019caffe-6785-7831-90f6-5d61f9633006" xlink:href="masi-20260404.xsd#masi_DisposalGroupIncludingDiscontinuedOperationAccruedCompensation"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_019caffe-6785-7074-806a-e0d6a4f21e98" xlink:to="loc_masi_DisposalGroupIncludingDiscontinuedOperationAccruedCompensation_019caffe-6785-7831-90f6-5d61f9633006" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_019caffe-6785-72e1-bebe-8d64218ef249" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_019caffe-6785-7074-806a-e0d6a4f21e98" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_019caffe-6785-72e1-bebe-8d64218ef249" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_019caffe-6785-79a9-bc5a-47419dd9b45c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents_019caffe-6785-719b-9717-6e22d247c9b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_019caffe-6785-79a9-bc5a-47419dd9b45c" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents_019caffe-6785-719b-9717-6e22d247c9b3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019caffe-6785-799c-a57b-27ecf589d9c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_019caffe-6785-7ec3-9e0c-d6b28b0ad5ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019caffe-6785-799c-a57b-27ecf589d9c6" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_019caffe-6785-7ec3-9e0c-d6b28b0ad5ec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_019caffe-6785-7107-af4c-3024d5484c27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019caffe-6785-799c-a57b-27ecf589d9c6" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_019caffe-6785-7107-af4c-3024d5484c27" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_019caffe-6785-7603-8de4-de271e302166" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_019caffe-6785-78d5-bb3d-c3bf2707d3d6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_019caffe-6785-7603-8de4-de271e302166" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_019caffe-6785-78d5-bb3d-c3bf2707d3d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_019caffe-6785-7b4d-b52c-8a987b434809" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets_019caffe-6785-763d-813a-25164c51d80b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_019caffe-6785-7b4d-b52c-8a987b434809" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets_019caffe-6785-763d-813a-25164c51d80b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019caffe-6785-7684-b2f3-cbf134c7f606" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_019caffe-6785-74b5-b2a4-0e4ba09f0ad3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019caffe-6785-7684-b2f3-cbf134c7f606" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_019caffe-6785-74b5-b2a4-0e4ba09f0ad3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_019caffe-6785-7b4b-92e4-91cebf7dc956" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019caffe-6785-7684-b2f3-cbf134c7f606" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_019caffe-6785-7b4b-92e4-91cebf7dc956" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.masimo.com/role/NonoperatingLossDetails" xlink:type="simple" xlink:href="masi-20260404.xsd#NonoperatingLossDetails"/>
  <link:calculationLink xlink:role="http://www.masimo.com/role/NonoperatingLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_019caffe-6785-713f-9d68-327cedbc0839" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019caffe-6785-7772-b357-f88369ad5909" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_019caffe-6785-713f-9d68-327cedbc0839" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019caffe-6785-7772-b357-f88369ad5909" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOther_019caffe-6785-7f5c-9990-ebd7de2714b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeOther"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_019caffe-6785-713f-9d68-327cedbc0839" xlink:to="loc_us-gaap_InterestIncomeOther_019caffe-6785-7f5c-9990-ebd7de2714b7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019caffe-6785-7d16-b4b1-61e3a04892e0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_019caffe-6785-713f-9d68-327cedbc0839" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019caffe-6785-7d16-b4b1-61e3a04892e0" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
