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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a0edf3-630b-7340-8edb-55d84abd0ea7,g:64e45e31-c30f-4fc0-a079-ee95fc584c2b-->
<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.viavisolutions.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="viav-20261003.xsd#CONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_01a0edf3-6530-74cf-9d56-226170cc8bea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0edf3-6530-75a3-a443-0ea1ff29e6f1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-74cf-9d56-226170cc8bea" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0edf3-6530-75a3-a443-0ea1ff29e6f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_01a0edf3-6530-7323-a423-ef2dabd72168" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_01a0edf3-6530-74cf-9d56-226170cc8bea" xlink:to="loc_us-gaap_CostOfRevenue_01a0edf3-6530-7323-a423-ef2dabd72168" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_01a0edf3-6530-744a-b28b-72ed2e44bb39" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_01a0edf3-6530-7068-94c4-1185925cc610" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_01a0edf3-6530-744a-b28b-72ed2e44bb39" xlink:to="loc_us-gaap_OperatingIncomeLoss_01a0edf3-6530-7068-94c4-1185925cc610" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_01a0edf3-6530-74d0-8caf-a1d856555ae9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_01a0edf3-6530-744a-b28b-72ed2e44bb39" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_01a0edf3-6530-74d0-8caf-a1d856555ae9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_01a0edf3-6530-7287-8896-2ce54e2553bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_01a0edf3-6530-744a-b28b-72ed2e44bb39" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_01a0edf3-6530-7287-8896-2ce54e2553bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_01a0edf3-6530-7342-ad81-38df87e68429" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_01a0edf3-6530-744a-b28b-72ed2e44bb39" xlink:to="loc_us-gaap_InterestExpenseNonoperating_01a0edf3-6530-7342-ad81-38df87e68429" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_01a0edf3-6530-7ad2-ac61-b0d382ec1f21" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_01a0edf3-6530-7355-bc25-4eac05bc4350" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_01a0edf3-6530-7ad2-ac61-b0d382ec1f21" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_01a0edf3-6530-7355-bc25-4eac05bc4350" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_01a0edf3-6530-72af-93ba-16dd3404d5d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_01a0edf3-6530-7ad2-ac61-b0d382ec1f21" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_01a0edf3-6530-72af-93ba-16dd3404d5d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_01a0edf3-6530-748f-9c4b-2c61d56fd25b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_01a0edf3-6530-7ad2-ac61-b0d382ec1f21" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_01a0edf3-6530-748f-9c4b-2c61d56fd25b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_01a0edf3-6530-7d97-a35b-29b8fb1c3354" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_01a0edf3-6530-78c2-a3b3-b2996cae3655" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_01a0edf3-6530-7d97-a35b-29b8fb1c3354" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_01a0edf3-6530-78c2-a3b3-b2996cae3655" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_01a0edf3-6530-775f-9711-487a94fec8b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_01a0edf3-6530-7d97-a35b-29b8fb1c3354" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_01a0edf3-6530-775f-9711-487a94fec8b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_01a0edf3-6530-72ae-843c-a17f16df0945" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_01a0edf3-6530-7d97-a35b-29b8fb1c3354" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_01a0edf3-6530-72ae-843c-a17f16df0945" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_01a0edf3-6530-7f5e-9ee0-af0a71f5f3c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCharges"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_01a0edf3-6530-7d97-a35b-29b8fb1c3354" xlink:to="loc_us-gaap_RestructuringCharges_01a0edf3-6530-7f5e-9ee0-af0a71f5f3c6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_01a0edf3-6530-74cd-a8d8-997201984d82" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_01a0edf3-6530-7620-9ec9-df6caa8eb2c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-74cd-a8d8-997201984d82" xlink:to="loc_us-gaap_GrossProfit_01a0edf3-6530-7620-9ec9-df6caa8eb2c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_01a0edf3-6530-7d9f-b8b2-2bc865c05f13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-74cd-a8d8-997201984d82" xlink:to="loc_us-gaap_OperatingExpenses_01a0edf3-6530-7d9f-b8b2-2bc865c05f13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_01a0edf3-6530-7bdd-8839-eadab6882192" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_01a0edf3-6530-7026-84f3-299801e902ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostOfRevenue_01a0edf3-6530-7bdd-8839-eadab6882192" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_01a0edf3-6530-7026-84f3-299801e902ed" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostDepreciationAmortizationAndDepletion_01a0edf3-6530-734c-ab06-1bed2adc529e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostDepreciationAmortizationAndDepletion"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostOfRevenue_01a0edf3-6530-7bdd-8839-eadab6882192" xlink:to="loc_us-gaap_CostDepreciationAmortizationAndDepletion_01a0edf3-6530-734c-ab06-1bed2adc529e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" xlink:type="simple" xlink:href="viav-20261003.xsd#CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_01a0edf3-6530-7087-bf5f-b2f298a77cb1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_01a0edf3-6530-7add-a6c5-e63f44576459" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-7087-bf5f-b2f298a77cb1" xlink:to="loc_us-gaap_NetIncomeLoss_01a0edf3-6530-7add-a6c5-e63f44576459" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_01a0edf3-6530-7bb0-a6a8-dab35ef3a7a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-7087-bf5f-b2f298a77cb1" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_01a0edf3-6530-7bb0-a6a8-dab35ef3a7a5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="viav-20261003.xsd#CONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_01a0edf3-6530-7516-b6c2-11278ddea8bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtNoncurrent_01a0edf3-6530-7151-bab7-3250bd61544f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebtNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_01a0edf3-6530-7516-b6c2-11278ddea8bd" xlink:to="loc_us-gaap_ConvertibleDebtNoncurrent_01a0edf3-6530-7151-bab7-3250bd61544f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-74d3-a9dd-fb3bea679a97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_01a0edf3-6530-7516-b6c2-11278ddea8bd" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-74d3-a9dd-fb3bea679a97" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_01a0edf3-6530-7ac2-86da-d85f0b2d81c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-7516-b6c2-11278ddea8bd" xlink:to="loc_us-gaap_LiabilitiesCurrent_01a0edf3-6530-7ac2-86da-d85f0b2d81c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_01a0edf3-6530-7c00-bf55-f76762d71834" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_01a0edf3-6530-7101-b6c7-46b5f71bd75b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_01a0edf3-6530-7c00-bf55-f76762d71834" xlink:to="loc_us-gaap_PreferredStockValue_01a0edf3-6530-7101-b6c7-46b5f71bd75b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_01a0edf3-6530-7c7b-8114-d159f0d76f5c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_01a0edf3-6530-7c00-bf55-f76762d71834" xlink:to="loc_us-gaap_CommonStockValue_01a0edf3-6530-7c7b-8114-d159f0d76f5c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_01a0edf3-6530-706b-b009-fb1025179117" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_01a0edf3-6530-7c00-bf55-f76762d71834" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_01a0edf3-6530-706b-b009-fb1025179117" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_01a0edf3-6530-73aa-a29c-7da757f3d2d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_01a0edf3-6530-7c00-bf55-f76762d71834" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_01a0edf3-6530-73aa-a29c-7da757f3d2d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_01a0edf3-6530-722e-91c8-dad1ffb31be8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_01a0edf3-6530-7c00-bf55-f76762d71834" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_01a0edf3-6530-722e-91c8-dad1ffb31be8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_01a0edf3-6530-70ad-9338-b650bbac519b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_01a0edf3-6530-7667-ae4f-1a541d2ecc15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_01a0edf3-6530-70ad-9338-b650bbac519b" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_01a0edf3-6530-7667-ae4f-1a541d2ecc15" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_01a0edf3-6530-7a40-8f26-82b3ae6a7616" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_01a0edf3-6530-70ad-9338-b650bbac519b" xlink:to="loc_us-gaap_AssetsCurrent_01a0edf3-6530-7a40-8f26-82b3ae6a7616" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_01a0edf3-6530-7570-9694-4a0f9e20ba56" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_01a0edf3-6530-70ad-9338-b650bbac519b" xlink:to="loc_us-gaap_Goodwill_01a0edf3-6530-7570-9694-4a0f9e20ba56" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_01a0edf3-6530-7b51-8de0-d959b171ffcc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_01a0edf3-6530-70ad-9338-b650bbac519b" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_01a0edf3-6530-7b51-8de0-d959b171ffcc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_01a0edf3-6530-7120-8bce-8822bd0db0c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_01a0edf3-6530-70ad-9338-b650bbac519b" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_01a0edf3-6530-7120-8bce-8822bd0db0c7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_01a0edf3-6530-7afd-aff6-cdbb5bb2157f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_01a0edf3-6530-70ad-9338-b650bbac519b" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_01a0edf3-6530-7afd-aff6-cdbb5bb2157f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_01a0edf3-6530-79ff-9be1-76adf7e35666" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_01a0edf3-6530-768a-9363-db9ae505245a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-79ff-9be1-76adf7e35666" xlink:to="loc_us-gaap_CommitmentsAndContingencies_01a0edf3-6530-768a-9363-db9ae505245a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_01a0edf3-6530-747b-8d35-29cc7e405393" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-79ff-9be1-76adf7e35666" xlink:to="loc_us-gaap_StockholdersEquity_01a0edf3-6530-747b-8d35-29cc7e405393" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_01a0edf3-6530-7fa1-a18a-3b7a2e008f6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-79ff-9be1-76adf7e35666" xlink:to="loc_us-gaap_Liabilities_01a0edf3-6530-7fa1-a18a-3b7a2e008f6c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_01a0edf3-6530-7b05-af0e-a84c063f5cf1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_01a0edf3-6530-70a9-a19d-e44dc5ae2c69" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_01a0edf3-6530-7b05-af0e-a84c063f5cf1" xlink:to="loc_us-gaap_AccountsPayableCurrent_01a0edf3-6530-70a9-a19d-e44dc5ae2c69" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_01a0edf3-6530-78f3-bb63-0712fe4560d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_01a0edf3-6530-7b05-af0e-a84c063f5cf1" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_01a0edf3-6530-78f3-bb63-0712fe4560d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_01a0edf3-6530-77be-8a99-8693b6d2c853" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_01a0edf3-6530-7b05-af0e-a84c063f5cf1" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_01a0edf3-6530-77be-8a99-8693b6d2c853" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_01a0edf3-6530-74ca-835d-1f11777a37c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_01a0edf3-6530-7b05-af0e-a84c063f5cf1" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_01a0edf3-6530-74ca-835d-1f11777a37c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7c0c-87f7-1b2c4fd6f9b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_01a0edf3-6530-7b05-af0e-a84c063f5cf1" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7c0c-87f7-1b2c4fd6f9b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_01a0edf3-6530-740d-a66e-c6bd273fc2be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_01a0edf3-6530-7b05-af0e-a84c063f5cf1" xlink:to="loc_us-gaap_DebtCurrent_01a0edf3-6530-740d-a66e-c6bd273fc2be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_01a0edf3-6530-7926-a7ca-06f17af68807" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_01a0edf3-6530-7c7f-b334-e58a2d83bdd9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-7926-a7ca-06f17af68807" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_01a0edf3-6530-7c7f-b334-e58a2d83bdd9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_01a0edf3-6530-70ff-8e73-f5daea9392e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_01a0edf3-6530-7926-a7ca-06f17af68807" xlink:to="loc_us-gaap_ShortTermInvestments_01a0edf3-6530-70ff-8e73-f5daea9392e5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_01a0edf3-6530-7d63-9232-7eb125fde5b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_01a0edf3-6530-7926-a7ca-06f17af68807" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_01a0edf3-6530-7d63-9232-7eb125fde5b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_01a0edf3-6530-7b3d-a6d0-3455c014b24e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_01a0edf3-6530-7926-a7ca-06f17af68807" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_01a0edf3-6530-7b3d-a6d0-3455c014b24e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_01a0edf3-6530-7186-a00a-a2324aa6f607" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_01a0edf3-6530-7926-a7ca-06f17af68807" xlink:to="loc_us-gaap_InventoryNet_01a0edf3-6530-7186-a00a-a2324aa6f607" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_01a0edf3-6530-7486-a354-d37a443f6cd7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_01a0edf3-6530-7926-a7ca-06f17af68807" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_01a0edf3-6530-7486-a354-d37a443f6cd7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="viav-20261003.xsd#CONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_01a0edf3-6530-74bf-8f99-e267e4f153be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_NetIncomeLoss_01a0edf3-6530-74bf-8f99-e267e4f153be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_01a0edf3-6530-71cf-883a-974993e8d087" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Depreciation"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_Depreciation_01a0edf3-6530-71cf-883a-974993e8d087" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_FiniteLivedIntangibleAssetsAmortizedExpense_01a0edf3-6530-735e-9df6-2791e6798727" xlink:href="viav-20261003.xsd#viav_FiniteLivedIntangibleAssetsAmortizedExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_viav_FiniteLivedIntangibleAssetsAmortizedExpense_01a0edf3-6530-735e-9df6-2791e6798727" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_01a0edf3-6530-79a5-bfc6-ba2ca5eb03d7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_ShareBasedCompensation_01a0edf3-6530-79a5-bfc6-ba2ca5eb03d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_01a0edf3-6530-7bb3-9b39-ec1e7532eb89" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_01a0edf3-6530-7bb3-9b39-ec1e7532eb89" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_01a0edf3-6530-7e45-95b8-f5ba57bf4e58" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_01a0edf3-6530-7e45-95b8-f5ba57bf4e58" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_01a0edf3-6530-793c-8deb-705f57dd4a4c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_01a0edf3-6530-793c-8deb-705f57dd4a4c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_01a0edf3-6530-7221-b047-19588a34bfb0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_01a0edf3-6530-7221-b047-19588a34bfb0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_AmortizationOfInventoryStepUp_01a0edf3-6530-7ec9-a4c3-9f2d7618ae5f" xlink:href="viav-20261003.xsd#viav_AmortizationOfInventoryStepUp"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_viav_AmortizationOfInventoryStepUp_01a0edf3-6530-7ec9-a4c3-9f2d7618ae5f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCosts_01a0edf3-6530-765b-859c-76acc800c15a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCosts"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_RestructuringCosts_01a0edf3-6530-765b-859c-76acc800c15a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_01a0edf3-6530-7e32-9c1b-f72095b0eea4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_01a0edf3-6530-7e32-9c1b-f72095b0eea4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_01a0edf3-6530-7418-88e7-1f3f7dbc4193" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_01a0edf3-6530-7418-88e7-1f3f7dbc4193" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_01a0edf3-6530-7d01-bcc8-a2f51138c192" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_01a0edf3-6530-7d01-bcc8-a2f51138c192" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_01a0edf3-6530-7149-8051-c5fb41a09a81" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_01a0edf3-6530-7149-8051-c5fb41a09a81" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_01a0edf3-6530-744d-8f3d-a41d5071dc3d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_01a0edf3-6530-744d-8f3d-a41d5071dc3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_01a0edf3-6530-7b14-8b18-b9b60afffcd3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_01a0edf3-6530-7b14-8b18-b9b60afffcd3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_01a0edf3-6530-734a-acb3-b926cb5e7d7e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_01a0edf3-6530-734a-acb3-b926cb5e7d7e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_01a0edf3-6530-7754-a2b6-634fd881a75c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_01a0edf3-6530-7754-a2b6-634fd881a75c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_01a0edf3-6530-7840-8c6e-7ba16e3c47d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherAccruedLiabilities"/>
    <link:calculationArc order="19" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-76d8-a7ae-277d6b8441bd" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_01a0edf3-6530-7840-8c6e-7ba16e3c47d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_01a0edf3-6530-79f2-88be-fd6735c0b514" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-784b-997c-584411227458" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-79f2-88be-fd6735c0b514" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_01a0edf3-6530-784b-997c-584411227458" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a0edf3-6530-7742-a347-7ce6f805dc78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-79f2-88be-fd6735c0b514" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a0edf3-6530-7742-a347-7ce6f805dc78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01a0edf3-6530-7015-936c-cc78af4d4155" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-79f2-88be-fd6735c0b514" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01a0edf3-6530-7015-936c-cc78af4d4155" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_01a0edf3-6530-7e20-ae7e-c5943a7f34a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-79f2-88be-fd6735c0b514" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_01a0edf3-6530-7e20-ae7e-c5943a7f34a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a0edf3-6530-7dc6-9e47-a2707290d031" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireShortTermInvestments_01a0edf3-6530-7b7b-8129-794cf11e312d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireShortTermInvestments"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a0edf3-6530-7dc6-9e47-a2707290d031" xlink:to="loc_us-gaap_PaymentsToAcquireShortTermInvestments_01a0edf3-6530-7b7b-8129-794cf11e312d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments_01a0edf3-6530-70fc-a4ce-40fd552515aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a0edf3-6530-7dc6-9e47-a2707290d031" xlink:to="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments_01a0edf3-6530-70fc-a4ce-40fd552515aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_01a0edf3-6530-7412-bcb6-572f0cb1fbef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a0edf3-6530-7dc6-9e47-a2707290d031" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_01a0edf3-6530-7412-bcb6-572f0cb1fbef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_01a0edf3-6530-7ba8-afda-d64b642e13d3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a0edf3-6530-7dc6-9e47-a2707290d031" xlink:to="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_01a0edf3-6530-7ba8-afda-d64b642e13d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_01a0edf3-6530-71b0-ab85-81680d2e62ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a0edf3-6530-7dc6-9e47-a2707290d031" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_01a0edf3-6530-71b0-ab85-81680d2e62ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForPreviousAcquisition_01a0edf3-6530-7ced-a89f-8debb5634ae8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForPreviousAcquisition"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a0edf3-6530-7dc6-9e47-a2707290d031" xlink:to="loc_us-gaap_PaymentsForPreviousAcquisition_01a0edf3-6530-7ced-a89f-8debb5634ae8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_01a0edf3-6530-78cd-88b6-7036e93df9ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_01a0edf3-6530-7dc6-9e47-a2707290d031" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_01a0edf3-6530-78cd-88b6-7036e93df9ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01a0edf3-6530-7ddf-951e-41636496cc7b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt_01a0edf3-6530-7e64-b0d7-24adafb39288" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01a0edf3-6530-7ddf-951e-41636496cc7b" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt_01a0edf3-6530-7e64-b0d7-24adafb39288" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_01a0edf3-6530-79ad-b780-68a17c1fb487" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01a0edf3-6530-7ddf-951e-41636496cc7b" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_01a0edf3-6530-79ad-b780-68a17c1fb487" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_01a0edf3-6530-7f4f-a276-d6ce53774eb5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01a0edf3-6530-7ddf-951e-41636496cc7b" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_01a0edf3-6530-7f4f-a276-d6ce53774eb5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_01a0edf3-6530-78a8-8481-d4f9848bf40e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_NetCashProvidedByUsedInFinancingActivities_01a0edf3-6530-7ddf-951e-41636496cc7b" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_01a0edf3-6530-78a8-8481-d4f9848bf40e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_PaymentsForFailedSaleLeasebackAndCapitalLease_01a0edf3-6530-72b5-849b-8ce200f7ac94" xlink:href="viav-20261003.xsd#viav_PaymentsForFailedSaleLeasebackAndCapitalLease"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01a0edf3-6530-7ddf-951e-41636496cc7b" xlink:to="loc_viav_PaymentsForFailedSaleLeasebackAndCapitalLease_01a0edf3-6530-72b5-849b-8ce200f7ac94" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockPlans_01a0edf3-6530-7e42-bf4f-14bf39fa549e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromStockPlans"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01a0edf3-6530-7ddf-951e-41636496cc7b" xlink:to="loc_us-gaap_ProceedsFromStockPlans_01a0edf3-6530-7e42-bf4f-14bf39fa549e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#EarningsPerShareDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_01a0edf3-6530-7733-aa51-f1b208a8eb8d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_01a0edf3-6530-7e2c-a645-3c1612133456" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-7733-aa51-f1b208a8eb8d" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_01a0edf3-6530-7e2c-a645-3c1612133456" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_01a0edf3-6530-75eb-854b-18841601686a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-7733-aa51-f1b208a8eb8d" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_01a0edf3-6530-75eb-854b-18841601686a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_IncrementalCommonSharesAttributableToDilutiveEffectOfConversionOfDebtSecuritiesNetSettlementMethod_01a0edf3-6530-7f6a-899b-24ef8c759621" xlink:href="viav-20261003.xsd#viav_IncrementalCommonSharesAttributableToDilutiveEffectOfConversionOfDebtSecuritiesNetSettlementMethod"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_01a0edf3-6530-7733-aa51-f1b208a8eb8d" xlink:to="loc_viav_IncrementalCommonSharesAttributableToDilutiveEffectOfConversionOfDebtSecuritiesNetSettlementMethod_01a0edf3-6530-7f6a-899b-24ef8c759621" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/AccumulatedOtherComprehensiveLossDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#AccumulatedOtherComprehensiveLossDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/AccumulatedOtherComprehensiveLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_01a0edf3-6530-7f34-8004-48f3e06f0f2a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_01a0edf3-6530-7bf9-bc8c-a4dc30c94846" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_01a0edf3-6530-7f34-8004-48f3e06f0f2a" xlink:to="loc_us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_01a0edf3-6530-7bf9-bc8c-a4dc30c94846" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/AcquisitionsAllocationofPurchasePriceDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#AcquisitionsAllocationofPurchasePriceDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/AcquisitionsAllocationofPurchasePriceDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_01a0edf3-6530-7fbe-9d01-225807840baf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_01a0edf3-6530-7fbe-9d01-225807840baf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_01a0edf3-6530-7090-b338-852e3e2ee160" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_01a0edf3-6530-7090-b338-852e3e2ee160" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_01a0edf3-6530-76d9-bf48-4ed7efdb747e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_01a0edf3-6530-76d9-bf48-4ed7efdb747e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_01a0edf3-6530-782f-b93d-ba81f7dc1711" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_01a0edf3-6530-782f-b93d-ba81f7dc1711" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_01a0edf3-6530-7068-8497-5bddd4cd0541" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_01a0edf3-6530-7068-8497-5bddd4cd0541" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedPayrollAndRelatedExpenses_01a0edf3-6530-7d62-a9e8-09af6874a655" xlink:href="viav-20261003.xsd#viav_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedPayrollAndRelatedExpenses"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_viav_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedPayrollAndRelatedExpenses_01a0edf3-6530-7d62-a9e8-09af6874a655" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_01a0edf3-6530-729b-94f0-c35b38d99bad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_01a0edf3-6530-729b-94f0-c35b38d99bad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_01a0edf3-6530-7c0e-9dcf-ec5981559e04" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_Goodwill_01a0edf3-6530-7c0e-9dcf-ec5981559e04" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_01a0edf3-6530-73e8-8a14-d6bc1cb5e5d7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_01a0edf3-6530-73e8-8a14-d6bc1cb5e5d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_01a0edf3-6530-74d6-85db-aa6b6885e4f1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_01a0edf3-6530-74d6-85db-aa6b6885e4f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_01a0edf3-6530-773c-a82f-6a8736e9b052" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_01a0edf3-6530-773c-a82f-6a8736e9b052" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpenses_01a0edf3-6530-739e-b2ae-2423fffd76bc" xlink:href="viav-20261003.xsd#viav_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpenses"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_viav_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpenses_01a0edf3-6530-739e-b2ae-2423fffd76bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_01a0edf3-6530-7188-afae-1fcc48579d81" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_01a0edf3-6530-7188-afae-1fcc48579d81" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_01a0edf3-6530-78ac-bee1-4529f20b35ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_01a0edf3-6530-78ac-bee1-4529f20b35ec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_GoodwillIncludingMeasurementAdjustments_01a17569-b527-7c42-b059-1df77dfef597" xlink:href="viav-20261003.xsd#viav_GoodwillIncludingMeasurementAdjustments"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_01a0edf3-6530-7e7c-b496-8304902b76b7" xlink:to="loc_viav_GoodwillIncludingMeasurementAdjustments_01a17569-b527-7c42-b059-1df77dfef597" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsInventoriesDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#BalanceSheetandOtherDetailsInventoriesDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsInventoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_01a0edf3-6530-7849-a53b-81e56f49273e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_01a0edf3-6530-722e-81b1-849107276b81" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_01a0edf3-6530-7849-a53b-81e56f49273e" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_01a0edf3-6530-722e-81b1-849107276b81" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_01a0edf3-6530-71ab-8021-dafb4a70234c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-6530-7849-a53b-81e56f49273e" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_01a0edf3-6530-71ab-8021-dafb4a70234c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_01a0edf3-6530-78b3-9111-62b0ef8b1dce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_01a0edf3-6530-7849-a53b-81e56f49273e" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_01a0edf3-6530-78b3-9111-62b0ef8b1dce" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsPrepaymentsandOtherCurrentAssetsDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#BalanceSheetandOtherDetailsPrepaymentsandOtherCurrentAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsPrepaymentsandOtherCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_01a0edf3-6530-7e80-b9ab-8acf10fe8fee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesReceivable_01a0edf3-6530-72f3-ab56-cbd3b0023f02" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxesReceivable"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_01a0edf3-6530-7e80-b9ab-8acf10fe8fee" xlink:to="loc_us-gaap_IncomeTaxesReceivable_01a0edf3-6530-72f3-ab56-cbd3b0023f02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_01a0edf3-6530-76a4-949c-2969e5c86c3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_01a0edf3-6530-7e80-b9ab-8acf10fe8fee" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_01a0edf3-6530-76a4-949c-2969e5c86c3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_AdvancesToContractManufacturers_01a0edf3-6530-7564-8dc6-ecc433f4fdca" xlink:href="viav-20261003.xsd#viav_AdvancesToContractManufacturers"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_01a0edf3-6530-7e80-b9ab-8acf10fe8fee" xlink:to="loc_viav_AdvancesToContractManufacturers_01a0edf3-6530-7564-8dc6-ecc433f4fdca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousCurrent_01a0edf3-6530-7926-bae4-11b494204522" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsMiscellaneousCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_01a0edf3-6530-7e80-b9ab-8acf10fe8fee" xlink:to="loc_us-gaap_OtherAssetsMiscellaneousCurrent_01a0edf3-6530-7926-bae4-11b494204522" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsCurrent_01a0edf3-6530-76d8-aec5-9f9080f7598a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetsCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_01a0edf3-6530-7e80-b9ab-8acf10fe8fee" xlink:to="loc_us-gaap_DerivativeAssetsCurrent_01a0edf3-6530-76d8-aec5-9f9080f7598a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsOtherNonCurrentAssetsDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#BalanceSheetandOtherDetailsOtherNonCurrentAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsOtherNonCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_01a0edf3-6530-79af-a839-0a0c9c34c1fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsAssetsNoncurrent_01a0edf3-6530-7222-a08d-887b04ac9432" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepositsAssetsNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_01a0edf3-6530-79af-a839-0a0c9c34c1fe" xlink:to="loc_us-gaap_DepositsAssetsNoncurrent_01a0edf3-6530-7222-a08d-887b04ac9432" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCosts_01a0edf3-6530-782e-b2fb-2be5897fbe2d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredCosts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_01a0edf3-6530-79af-a839-0a0c9c34c1fe" xlink:to="loc_us-gaap_DeferredCosts_01a0edf3-6530-782e-b2fb-2be5897fbe2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNoncurrentNet_01a0edf3-6530-790d-999b-a47db8c078f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNoncurrentNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_01a0edf3-6530-79af-a839-0a0c9c34c1fe" xlink:to="loc_us-gaap_DeferredFinanceCostsNoncurrentNet_01a0edf3-6530-790d-999b-a47db8c078f7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_01a0edf3-6530-74b0-a813-d242bfab51f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsMiscellaneousNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_01a0edf3-6530-79af-a839-0a0c9c34c1fe" xlink:to="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_01a0edf3-6530-74b0-a813-d242bfab51f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_01a0edf3-6530-7a2e-bbea-0c43a942090c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_01a0edf3-6530-79af-a839-0a0c9c34c1fe" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_01a0edf3-6530-7a2e-bbea-0c43a942090c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_01a0edf3-6530-7486-b3bd-736a131d71b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_01a0edf3-6530-79af-a839-0a0c9c34c1fe" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_01a0edf3-6530-7486-b3bd-736a131d71b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermInvestments_01a0edf3-6530-7a2b-a9ed-13dcc10a8959" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermInvestments"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_01a0edf3-6530-79af-a839-0a0c9c34c1fe" xlink:to="loc_us-gaap_LongTermInvestments_01a0edf3-6530-7a2b-a9ed-13dcc10a8959" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsOtherCurrentLiabilitiesDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#BalanceSheetandOtherDetailsOtherCurrentLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsOtherCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7443-9483-4a4c7acec2e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_01a0edf3-6530-7c74-9572-4d0a8599121b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7443-9483-4a4c7acec2e8" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_01a0edf3-6530-7c74-9572-4d0a8599121b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_AcquisitionRelatedHoldbackAndRelatedAccrualsCurrent_01a0edf3-6530-7955-ade8-b93f36cd7ce0" xlink:href="viav-20261003.xsd#viav_AcquisitionRelatedHoldbackAndRelatedAccrualsCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7443-9483-4a4c7acec2e8" xlink:to="loc_viav_AcquisitionRelatedHoldbackAndRelatedAccrualsCurrent_01a0edf3-6530-7955-ade8-b93f36cd7ce0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrent_01a0edf3-6530-7455-b34b-2cee01ad56ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestPayableCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7443-9483-4a4c7acec2e8" xlink:to="loc_us-gaap_InterestPayableCurrent_01a0edf3-6530-7455-b34b-2cee01ad56ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveCurrent_01a0edf3-6530-7d1e-aded-de3daebbb3c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringReserveCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7443-9483-4a4c7acec2e8" xlink:to="loc_us-gaap_RestructuringReserveCurrent_01a0edf3-6530-7d1e-aded-de3daebbb3c9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_01a0edf3-6530-71b3-a0b7-c76f5e77a8d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7443-9483-4a4c7acec2e8" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_01a0edf3-6530-71b3-a0b7-c76f5e77a8d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_01a0edf3-6530-7e08-b1ed-1414caa24199" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7443-9483-4a4c7acec2e8" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_01a0edf3-6530-7e08-b1ed-1414caa24199" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSundryLiabilitiesCurrent_01a0edf3-6530-7b23-a5ec-27f0bfc83af6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherSundryLiabilitiesCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7443-9483-4a4c7acec2e8" xlink:to="loc_us-gaap_OtherSundryLiabilitiesCurrent_01a0edf3-6530-7b23-a5ec-27f0bfc83af6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_01a0edf3-6530-733b-b82a-f58d7ccdeca9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7443-9483-4a4c7acec2e8" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_01a0edf3-6530-733b-b82a-f58d7ccdeca9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesCurrent_01a0edf3-6530-790d-881c-9e51fb6b5178" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilitiesCurrent"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_01a0edf3-6530-7443-9483-4a4c7acec2e8" xlink:to="loc_us-gaap_DerivativeLiabilitiesCurrent_01a0edf3-6530-790d-881c-9e51fb6b5178" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsOtherNonCurrentLiabilitiesDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#BalanceSheetandOtherDetailsOtherNonCurrentLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsOtherNonCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-736a-adf1-729ea94b4738" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_01a0edf3-6530-78ae-a014-1aec4c7d6dcc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-736a-adf1-729ea94b4738" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_01a0edf3-6530-78ae-a014-1aec4c7d6dcc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_01a0edf3-6530-7725-84e1-4117cc58fb28" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-736a-adf1-729ea94b4738" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_01a0edf3-6530-7725-84e1-4117cc58fb28" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_01a0edf3-6530-7eda-87df-64df860e2e41" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-736a-adf1-729ea94b4738" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_01a0edf3-6530-7eda-87df-64df860e2e41" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_01a0edf3-6530-717c-bd96-ebe8ae9416d7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-736a-adf1-729ea94b4738" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_01a0edf3-6530-717c-bd96-ebe8ae9416d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_FinancingObligationNoncurrent_01a0edf3-6530-7015-a989-183cef8928ac" xlink:href="viav-20261003.xsd#viav_FinancingObligationNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-736a-adf1-729ea94b4738" xlink:to="loc_viav_FinancingObligationNoncurrent_01a0edf3-6530-7015-a989-183cef8928ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilityForUncertainTaxPositionsNoncurrent_01a0edf3-6530-7828-8e5d-4968b17eabfb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilityForUncertainTaxPositionsNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-736a-adf1-729ea94b4738" xlink:to="loc_us-gaap_LiabilityForUncertainTaxPositionsNoncurrent_01a0edf3-6530-7828-8e5d-4968b17eabfb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_01a0edf3-6530-70f8-ba26-d688a9a99bc0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-736a-adf1-729ea94b4738" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_01a0edf3-6530-70f8-ba26-d688a9a99bc0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationsNoncurrent_01a0edf3-6530-7fb7-93aa-fdb07f35a388" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetRetirementObligationsNoncurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-736a-adf1-729ea94b4738" xlink:to="loc_us-gaap_AssetRetirementObligationsNoncurrent_01a0edf3-6530-7fb7-93aa-fdb07f35a388" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSundryLiabilitiesNoncurrent_01a0edf3-6530-7bc7-9603-022866c10f1d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherSundryLiabilitiesNoncurrent"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_01a0edf3-6530-736a-adf1-729ea94b4738" xlink:to="loc_us-gaap_OtherSundryLiabilitiesNoncurrent_01a0edf3-6530-7bc7-9603-022866c10f1d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#FairValueMeasurementsScheduleofFairValueMeasurementsDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_01a0edf3-65ed-74de-839f-756ab16e57a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradingSecurities_01a0edf3-65ed-7e37-8bad-8ddb2575ee14" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TradingSecurities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_01a0edf3-65ed-74de-839f-756ab16e57a9" xlink:to="loc_us-gaap_TradingSecurities_01a0edf3-65ed-7e37-8bad-8ddb2575ee14" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_01a0edf3-65ed-7efc-962a-5afbd0fb6d3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignCurrencyContractAssetFairValueDisclosure"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_01a0edf3-65ed-74de-839f-756ab16e57a9" xlink:to="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_01a0edf3-65ed-7efc-962a-5afbd0fb6d3f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsAtCarryingValue_01a0edf3-65ed-7c92-b202-1d61a42fd453" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MoneyMarketFundsAtCarryingValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_01a0edf3-65ed-74de-839f-756ab16e57a9" xlink:to="loc_us-gaap_MoneyMarketFundsAtCarryingValue_01a0edf3-65ed-7c92-b202-1d61a42fd453" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_01a0edf3-65ed-794d-a056-b38274e07e49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_01a0edf3-65ed-74de-839f-756ab16e57a9" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_01a0edf3-65ed-794d-a056-b38274e07e49" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_01a0edf3-65ed-7aec-8c4b-185d4ec59ff0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_01a0edf3-65ed-7584-b210-27c7728706f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_01a0edf3-65ed-7aec-8c4b-185d4ec59ff0" xlink:to="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_01a0edf3-65ed-7584-b210-27c7728706f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_01a0edf3-65ed-7fb7-8968-68fd3d711379" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_01a0edf3-65ed-7aec-8c4b-185d4ec59ff0" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_01a0edf3-65ed-7fb7-8968-68fd3d711379" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/IntangiblesSummaryofIntangibleAssetsDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#IntangiblesSummaryofIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/IntangiblesSummaryofIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0edf3-65ee-70d4-ad1a-043f3282d05a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_01a0edf3-65ee-722e-8bbf-8ed92ffd7e01" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0edf3-65ee-70d4-ad1a-043f3282d05a" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_01a0edf3-65ee-722e-8bbf-8ed92ffd7e01" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_01a0edf3-65ee-7535-965a-e0430fce1238" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0edf3-65ee-70d4-ad1a-043f3282d05a" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_01a0edf3-65ee-7535-965a-e0430fce1238" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/IntangiblesEstimatedFutureAmortizationDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#IntangiblesEstimatedFutureAmortizationDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/IntangiblesEstimatedFutureAmortizationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0edf3-65ee-7544-b7ac-5e96c92a87ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_01a0edf3-65ee-73a2-b7b5-4124b8792a95" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0edf3-65ee-7544-b7ac-5e96c92a87ed" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_01a0edf3-65ee-73a2-b7b5-4124b8792a95" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_01a0edf3-65ee-70e8-82c1-47d8050e3e27" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0edf3-65ee-7544-b7ac-5e96c92a87ed" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_01a0edf3-65ee-70e8-82c1-47d8050e3e27" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_01a0edf3-65ee-72e1-9f56-bbc4ebafb02c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0edf3-65ee-7544-b7ac-5e96c92a87ed" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_01a0edf3-65ee-72e1-9f56-bbc4ebafb02c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_01a0edf3-65ee-7efa-9b05-1adc01f09253" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0edf3-65ee-7544-b7ac-5e96c92a87ed" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_01a0edf3-65ee-7efa-9b05-1adc01f09253" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_01a0edf3-65ee-726d-87bd-c013976a1efa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0edf3-65ee-7544-b7ac-5e96c92a87ed" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_01a0edf3-65ee-726d-87bd-c013976a1efa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_FiniteLivedIntangibleAssetsExpectedAmortizationAfterYearFour_01a0edf3-65ee-7e6c-a2ee-0f49e7dd15f1" xlink:href="viav-20261003.xsd#viav_FiniteLivedIntangibleAssetsExpectedAmortizationAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0edf3-65ee-7544-b7ac-5e96c92a87ed" xlink:to="loc_viav_FiniteLivedIntangibleAssetsExpectedAmortizationAfterYearFour_01a0edf3-65ee-7e6c-a2ee-0f49e7dd15f1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/DebtCarryingAmountsoftheLiabilityandEquityComponentsDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#DebtCarryingAmountsoftheLiabilityandEquityComponentsDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/DebtCarryingAmountsoftheLiabilityandEquityComponentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_01a0edf3-65ee-75fb-8034-b150b4b9833e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNoncurrentNet_01a0edf3-65ee-7e70-b8fa-6fd86fa3d4c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNoncurrentNet"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_01a0edf3-65ee-75fb-8034-b150b4b9833e" xlink:to="loc_us-gaap_DeferredFinanceCostsNoncurrentNet_01a0edf3-65ee-7e70-b8fa-6fd86fa3d4c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_01a0edf3-65ee-77a1-b080-ccdc453693b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_01a0edf3-65ee-75fb-8034-b150b4b9833e" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_01a0edf3-65ee-77a1-b080-ccdc453693b6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_01a0edf3-65ee-7692-8dd1-85040664ba97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_01a0edf3-65ee-7c3b-99e3-38fadb06c86f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtCurrent_01a0edf3-65ee-7692-8dd1-85040664ba97" xlink:to="loc_us-gaap_LongTermDebtCurrent_01a0edf3-65ee-7c3b-99e3-38fadb06c86f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountCurrent_01a0edf3-65ee-7ed9-9ba4-33cfcaa3da22" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscountCurrent"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtCurrent_01a0edf3-65ee-7692-8dd1-85040664ba97" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountCurrent_01a0edf3-65ee-7ed9-9ba4-33cfcaa3da22" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/DebtInterestExpenseDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#DebtInterestExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/DebtInterestExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_01a0edf3-65ee-7eca-8985-d70e29575713" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_InterestExpenseDebtOther_01a0edf3-65ee-7312-9593-ce72f486d5cb" xlink:href="viav-20261003.xsd#viav_InterestExpenseDebtOther"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_01a0edf3-65ee-7eca-8985-d70e29575713" xlink:to="loc_viav_InterestExpenseDebtOther_01a0edf3-65ee-7312-9593-ce72f486d5cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_01a0edf3-65ee-7a14-aab5-427cff1f7acf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_01a0edf3-65ee-7eca-8985-d70e29575713" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_01a0edf3-65ee-7a14-aab5-427cff1f7acf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization_01a0edf3-65ee-7a3b-81cd-557f38c551db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_01a0edf3-65ee-7eca-8985-d70e29575713" xlink:to="loc_us-gaap_InterestExpenseDebtExcludingAmortization_01a0edf3-65ee-7a3b-81cd-557f38c551db" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfDebtDiscountPremium_01a0edf3-65ee-744e-b0c8-f9abc3cb3756" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfDebtDiscountPremium"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_01a0edf3-65ee-7eca-8985-d70e29575713" xlink:to="loc_us-gaap_AmortizationOfDebtDiscountPremium_01a0edf3-65ee-744e-b0c8-f9abc3cb3756" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/LeasesFutureMinimumOperatingLeasePaymentsDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#LeasesFutureMinimumOperatingLeasePaymentsDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/LeasesFutureMinimumOperatingLeasePaymentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_01a0edf3-65ee-75db-8697-adb91ba30574" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_01a0edf3-65ee-7ff3-927a-5edd16ba3c0a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_01a0edf3-65ee-75db-8697-adb91ba30574" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_01a0edf3-65ee-7ff3-927a-5edd16ba3c0a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_01a0edf3-65ee-7617-ba64-bea3f4cd37b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_01a0edf3-65ee-75db-8697-adb91ba30574" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_01a0edf3-65ee-7617-ba64-bea3f4cd37b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_01a0edf3-65ee-7d7f-b063-c0a707e79ce1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_01a0edf3-65ee-75db-8697-adb91ba30574" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_01a0edf3-65ee-7d7f-b063-c0a707e79ce1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_01a0edf3-65ee-73fd-812a-d7cb77bc88e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_01a0edf3-65ee-75db-8697-adb91ba30574" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_01a0edf3-65ee-73fd-812a-d7cb77bc88e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_01a0edf3-65ee-7cd2-87cd-6ada7885e935" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_01a0edf3-65ee-75db-8697-adb91ba30574" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_01a0edf3-65ee-7cd2-87cd-6ada7885e935" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_viav_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_01a0edf3-65ee-7f3c-a2f0-0dea06ce0139" xlink:href="viav-20261003.xsd#viav_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_01a0edf3-65ee-75db-8697-adb91ba30574" xlink:to="loc_viav_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_01a0edf3-65ee-7f3c-a2f0-0dea06ce0139" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/LeasesFutureMinimumOperatingLeasePaymentsDetails_1" xlink:type="simple" xlink:href="viav-20261003.xsd#LeasesFutureMinimumOperatingLeasePaymentsDetails_1"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/LeasesFutureMinimumOperatingLeasePaymentsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_01a0edf3-65ee-7901-9386-903f74ad89d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_01a0edf3-65ee-7176-89fe-3f30592c26fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-65ee-7901-9386-903f74ad89d5" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_01a0edf3-65ee-7176-89fe-3f30592c26fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_01a0edf3-65ee-7bf5-90b7-5340c8b5ae60" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_01a0edf3-65ee-7901-9386-903f74ad89d5" xlink:to="loc_us-gaap_OperatingLeaseLiability_01a0edf3-65ee-7bf5-90b7-5340c8b5ae60" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/EmployeePensionandOtherBenefitPlansDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#EmployeePensionandOtherBenefitPlansDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/EmployeePensionandOtherBenefitPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_01a0edf3-65ee-7527-a8e6-d19908264e2a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_01a0edf3-65ee-7275-a285-f49508cdec23" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_01a0edf3-65ee-7527-a8e6-d19908264e2a" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_01a0edf3-65ee-7275-a285-f49508cdec23" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_01a0edf3-65ee-75cd-9ed6-2c81b9f28b25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_01a0edf3-65ee-7527-a8e6-d19908264e2a" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_01a0edf3-65ee-75cd-9ed6-2c81b9f28b25" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_01a0edf3-65ee-7a7b-81ce-5836e24c0724" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_01a0edf3-65ee-7527-a8e6-d19908264e2a" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_01a0edf3-65ee-7a7b-81ce-5836e24c0724" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.viavisolutions.com/role/OperatingSegmentsandGeographicInformationSummaryofReportableSegmentsDetails" xlink:type="simple" xlink:href="viav-20261003.xsd#OperatingSegmentsandGeographicInformationSummaryofReportableSegmentsDetails"/>
  <link:calculationLink xlink:role="http://www.viavisolutions.com/role/OperatingSegmentsandGeographicInformationSummaryofReportableSegmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_01a0edf3-65ee-7948-8405-5c3c08698caa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0edf3-65ee-703b-a366-d7e92a2d65f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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_OperatingIncomeLoss_01a0edf3-65ee-7948-8405-5c3c08698caa" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0edf3-65ee-703b-a366-d7e92a2d65f6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_01a0edf3-65ee-7691-b80a-63c8402eb7db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_01a0edf3-65ee-7948-8405-5c3c08698caa" xlink:to="loc_us-gaap_CostOfRevenue_01a0edf3-65ee-7691-b80a-63c8402eb7db" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_01a0edf3-65ee-70bd-b3dd-16c247d71410" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_01a0edf3-65ee-7948-8405-5c3c08698caa" xlink:to="loc_us-gaap_OperatingExpenses_01a0edf3-65ee-70bd-b3dd-16c247d71410" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_01a0edf3-65ee-75e4-86b3-2cca666c0893" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_01a0edf3-65ee-7242-8641-5ee17fee81e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_01a0edf3-65ee-75e4-86b3-2cca666c0893" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_01a0edf3-65ee-7242-8641-5ee17fee81e5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_01a0edf3-65ee-7347-9abb-41df4cf9948a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_01a0edf3-65ee-75e4-86b3-2cca666c0893" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_01a0edf3-65ee-7347-9abb-41df4cf9948a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_01a0edf3-65ee-712b-a1b0-c02013251948" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingOtherItemAmount"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_01a0edf3-65ee-75e4-86b3-2cca666c0893" xlink:to="loc_us-gaap_SegmentReportingOtherItemAmount_01a0edf3-65ee-712b-a1b0-c02013251948" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
