<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 6.5a -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#Cover" roleURI="http://srxhealth.ca/role/Cover" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#StatementsOfOperations" roleURI="http://srxhealth.ca/role/StatementsOfOperations" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#BalanceSheets" roleURI="http://srxhealth.ca/role/BalanceSheets" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#BalanceSheetsParenthetical" roleURI="http://srxhealth.ca/role/BalanceSheetsParenthetical" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#StatementsOfStockholdersEquity" roleURI="http://srxhealth.ca/role/StatementsOfStockholdersEquity" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#StatementsOfCashFlows" roleURI="http://srxhealth.ca/role/StatementsOfCashFlows" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#NatureOfBusinessAndSummaryOfSignificantAccountingPolicies" roleURI="http://srxhealth.ca/role/NatureOfBusinessAndSummaryOfSignificantAccountingPolicies" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#Revenue" roleURI="http://srxhealth.ca/role/Revenue" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#Inventories" roleURI="http://srxhealth.ca/role/Inventories" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#DigitalAssets" roleURI="http://srxhealth.ca/role/DigitalAssets" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#FixedAssets" roleURI="http://srxhealth.ca/role/FixedAssets" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#Debt" roleURI="http://srxhealth.ca/role/Debt" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#FairValueMeasurements" roleURI="http://srxhealth.ca/role/FairValueMeasurements" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#CommitmentsAndContingencies" roleURI="http://srxhealth.ca/role/CommitmentsAndContingencies" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#WarrantsAndOtherEquityRelatedInstruments" roleURI="http://srxhealth.ca/role/WarrantsAndOtherEquityRelatedInstruments" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#Share-basedCompensation" roleURI="http://srxhealth.ca/role/Share-basedCompensation" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#EmployeeBenefitPlans" roleURI="http://srxhealth.ca/role/EmployeeBenefitPlans" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#RelatedPartyTransactions" roleURI="http://srxhealth.ca/role/RelatedPartyTransactions" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#IncomeTaxes" roleURI="http://srxhealth.ca/role/IncomeTaxes" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#SegmentInformation" roleURI="http://srxhealth.ca/role/SegmentInformation" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#Concentrations" roleURI="http://srxhealth.ca/role/Concentrations" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#LossPerShare" roleURI="http://srxhealth.ca/role/LossPerShare" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#DiscontinuedOperations" roleURI="http://srxhealth.ca/role/DiscontinuedOperations" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#SubsequentEvents" roleURI="http://srxhealth.ca/role/SubsequentEvents" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#BusinessCombinations" roleURI="http://srxhealth.ca/role/BusinessCombinations" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#GoodwillAndIntangibleAssets" roleURI="http://srxhealth.ca/role/GoodwillAndIntangibleAssets" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#Leases" roleURI="http://srxhealth.ca/role/Leases" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#NatureOfBusinessAndSummaryOfSignificantAccountingPoliciesPolicies" roleURI="http://srxhealth.ca/role/NatureOfBusinessAndSummaryOfSignificantAccountingPoliciesPolicies" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#RevenueTables" roleURI="http://srxhealth.ca/role/RevenueTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#InventoriesTables" roleURI="http://srxhealth.ca/role/InventoriesTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#DigitalAssetsTables" roleURI="http://srxhealth.ca/role/DigitalAssetsTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#FixedAssetsTables" roleURI="http://srxhealth.ca/role/FixedAssetsTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#DebtTables" roleURI="http://srxhealth.ca/role/DebtTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#FairValueMeasurementsTables" roleURI="http://srxhealth.ca/role/FairValueMeasurementsTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#WarrantsAndOtherEquityRelatedInstrumentsTables" roleURI="http://srxhealth.ca/role/WarrantsAndOtherEquityRelatedInstrumentsTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#Share-basedCompensationTables" roleURI="http://srxhealth.ca/role/Share-basedCompensationTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#SegmentInformationTables" roleURI="http://srxhealth.ca/role/SegmentInformationTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#LossPerShareTables" roleURI="http://srxhealth.ca/role/LossPerShareTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#DiscontinuedOperationsTables" roleURI="http://srxhealth.ca/role/DiscontinuedOperationsTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#BusinessCombinationsTables" roleURI="http://srxhealth.ca/role/BusinessCombinationsTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#GoodwillAndIntangibleAssetsTables" roleURI="http://srxhealth.ca/role/GoodwillAndIntangibleAssetsTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#LeasesTables" roleURI="http://srxhealth.ca/role/LeasesTables" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#NatureOfBusinessAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" roleURI="http://srxhealth.ca/role/NatureOfBusinessAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfInformationAboutRevenueChannelsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfInformationAboutRevenueChannelsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfInformationAboutRevenueChannelsDetailsParenthetical" roleURI="http://srxhealth.ca/role/ScheduleOfInformationAboutRevenueChannelsDetailsParenthetical" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#RevenueDetailsNarrative" roleURI="http://srxhealth.ca/role/RevenueDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfInventoriesDetails" roleURI="http://srxhealth.ca/role/ScheduleOfInventoriesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfCryptoAssetsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfCryptoAssetsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfDigitalAssetPurchasesAndUnrealizedGainsLossesOnDigitalAssetsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfDigitalAssetPurchasesAndUnrealizedGainsLossesOnDigitalAssetsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfFixedAssetsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfFixedAssetsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#FixedAssetsDetailsNarrative" roleURI="http://srxhealth.ca/role/FixedAssetsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfInitialCarryingAmountDetails" roleURI="http://srxhealth.ca/role/ScheduleOfInitialCarryingAmountDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfCarryingAmountNotesDetails" roleURI="http://srxhealth.ca/role/ScheduleOfCarryingAmountNotesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#DebtDetailsNarrative" roleURI="http://srxhealth.ca/role/DebtDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfContractualMaturitiesOfFinancialLiabilitiesDetails" roleURI="http://srxhealth.ca/role/ScheduleOfContractualMaturitiesOfFinancialLiabilitiesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfOutstandingWarrantsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfOutstandingWarrantsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#WarrantsAndOtherEquityRelatedInstrumentsDetailsNarrative" roleURI="http://srxhealth.ca/role/WarrantsAndOtherEquityRelatedInstrumentsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfRestrictedStockUnitsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfRestrictedStockUnitsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfStockOptionsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfStockOptionsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#Share-basedCompensationDetailsNarrative" roleURI="http://srxhealth.ca/role/Share-basedCompensationDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#EmployeeBenefitPlansDetailsNarrative" roleURI="http://srxhealth.ca/role/EmployeeBenefitPlansDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#RelatedPartyTransactionsDetailsNarrative" roleURI="http://srxhealth.ca/role/RelatedPartyTransactionsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#IncomeTaxesDetailsNarrative" roleURI="http://srxhealth.ca/role/IncomeTaxesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfSegmentInformationDetails" roleURI="http://srxhealth.ca/role/ScheduleOfSegmentInformationDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfRevenueByGeographyDetails" roleURI="http://srxhealth.ca/role/ScheduleOfRevenueByGeographyDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#SegmentInformationDetailsNarrative" roleURI="http://srxhealth.ca/role/SegmentInformationDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ConcentrationsDetailsNarrative" roleURI="http://srxhealth.ca/role/ConcentrationsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfBasicAndDilutedNetLossPerShareAttributableToCommonStockholdersDetails" roleURI="http://srxhealth.ca/role/ScheduleOfBasicAndDilutedNetLossPerShareAttributableToCommonStockholdersDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#LossPerShareDetailsNarrative" roleURI="http://srxhealth.ca/role/LossPerShareDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfOperationsOfDiscontinuedOperationsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfOperationsOfDiscontinuedOperationsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfCashFlowOfDiscontinuedOperationsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfCashFlowOfDiscontinuedOperationsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#SubsequentEventsDetailsNarrative" roleURI="http://srxhealth.ca/role/SubsequentEventsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfCompanyCanadianOperatingSubsidiaryDetails" roleURI="http://srxhealth.ca/role/ScheduleOfCompanyCanadianOperatingSubsidiaryDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfProFormaInformationDetails" roleURI="http://srxhealth.ca/role/ScheduleOfProFormaInformationDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#BusinessCombinationsDetailsNarrative" roleURI="http://srxhealth.ca/role/BusinessCombinationsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfIntangibleAssetsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfIntangibleAssetsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfGoodwillDetails" roleURI="http://srxhealth.ca/role/ScheduleOfGoodwillDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#GoodwillAndIntangibleAssetsDetailsNarrative" roleURI="http://srxhealth.ca/role/GoodwillAndIntangibleAssetsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#LeasesDetailsNarrative" roleURI="http://srxhealth.ca/role/LeasesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfAggregateAnnualLeasePaymentsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfAggregateAnnualLeasePaymentsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfShort-termBorrowingsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfShort-termBorrowingsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfTermFacilitiesDetails" roleURI="http://srxhealth.ca/role/ScheduleOfTermFacilitiesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfOtherBorrowingsDetails" roleURI="http://srxhealth.ca/role/ScheduleOfOtherBorrowingsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfCurrentAndLong-termPortionOfTermFacilitiesDetails" roleURI="http://srxhealth.ca/role/ScheduleOfCurrentAndLong-termPortionOfTermFacilitiesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfRelatedPartyBalancesDetails" roleURI="http://srxhealth.ca/role/ScheduleOfRelatedPartyBalancesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfEffectiveIncomeTaxRateReconciliationDetailsParenthetical" roleURI="http://srxhealth.ca/role/ScheduleOfEffectiveIncomeTaxRateReconciliationDetailsParenthetical" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfEffectiveIncomeTaxRateReconciliationDetails" roleURI="http://srxhealth.ca/role/ScheduleOfEffectiveIncomeTaxRateReconciliationDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" roleURI="http://srxhealth.ca/role/ScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="srxh-20251231.xsd#ScheduleOfValuationAllowanceDetails" roleURI="http://srxhealth.ca/role/ScheduleOfValuationAllowanceDetails" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/Cover" xlink:title="00000001 - Document - Cover" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/StatementsOfOperations" xlink:title="00000002 - Statement - Condensed Consolidated Statements of Operations">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaapGrossProfit" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:label="loc_us-gaapRevenueFromContractWithCustomerExcludingAssessedTax" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapGrossProfit" xlink:to="loc_us-gaapRevenueFromContractWithCustomerExcludingAssessedTax" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="loc_us-gaapCostOfGoodsAndServicesSold" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapGrossProfit" xlink:to="loc_us-gaapCostOfGoodsAndServicesSold" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaapOperatingExpenses" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaapSellingGeneralAndAdministrativeExpense" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingExpenses" xlink:to="loc_us-gaapSellingGeneralAndAdministrativeExpense" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaapOperatingIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapGrossProfit" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapOperatingExpenses" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_us-gaapNonoperatingIncomeExpense" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating" xlink:label="loc_us-gaapInterestExpenseNonoperating" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapInterestExpenseNonoperating" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaapGainsLossesOnExtinguishmentOfDebt" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapGainsLossesOnExtinguishmentOfDebt" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_BargainPurchaseGain" xlink:label="loc_SRXHBargainPurchaseGain" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_SRXHBargainPurchaseGain" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CryptoAssetUnrealizedGainLossNonoperating" xlink:label="loc_us-gaapCryptoAssetUnrealizedGainLossNonoperating" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapCryptoAssetUnrealizedGainLossNonoperating" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingExpense" xlink:label="loc_us-gaapOtherNonoperatingExpense" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapOtherNonoperatingExpense" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaapIncomeTaxExpenseBenefit" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="loc_us-gaapIncomeTaxExpenseBenefit" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="loc_us-gaapIncomeLossFromDiscontinuedOperationsNetOfTax" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_us-gaapIncomeLossFromDiscontinuedOperationsNetOfTax" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaapComprehensiveIncomeNetOfTax" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapComprehensiveIncomeNetOfTax" xlink:to="loc_us-gaapNetIncomeLoss" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_ReclassificationOfAociRelatedToDiscontinuedOperations" xlink:label="loc_SRXHReclassificationOfAociRelatedToDiscontinuedOperations" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapComprehensiveIncomeNetOfTax" xlink:to="loc_SRXHReclassificationOfAociRelatedToDiscontinuedOperations" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_ForeignCurrencyTranslationRelatedToDiscontinuedOperations" xlink:label="loc_SRXHForeignCurrencyTranslationRelatedToDiscontinuedOperations" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapComprehensiveIncomeNetOfTax" xlink:to="loc_SRXHForeignCurrencyTranslationRelatedToDiscontinuedOperations" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/BalanceSheets" xlink:title="00000003 - Statement - Condensed Consolidated Balance Sheets">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaapAssetsCurrent" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaapCashAndCashEquivalentsAtCarryingValue" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapCashAndCashEquivalentsAtCarryingValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaapAccountsReceivableNetCurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapAccountsReceivableNetCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaapInventoryNet" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapInventoryNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaapOtherAssetsCurrent" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapOtherAssetsCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NotesAndLoansReceivableGrossCurrent" xlink:label="loc_us-gaapNotesAndLoansReceivableGrossCurrent" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapNotesAndLoansReceivableGrossCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapAssetsCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaapPropertyPlantAndEquipmentNet" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaapOperatingLeaseRightOfUseAsset" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapOperatingLeaseRightOfUseAsset" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NotesAndLoansReceivableGrossNoncurrent" xlink:label="loc_us-gaapNotesAndLoansReceivableGrossNoncurrent" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapNotesAndLoansReceivableGrossNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaapIntangibleAssetsNetExcludingGoodwill" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapIntangibleAssetsNetExcludingGoodwill" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:label="loc_us-gaapDeferredIncomeTaxAssetsNet" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapDeferredIncomeTaxAssetsNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CryptoAssetFairValueNoncurrent" xlink:label="loc_us-gaapCryptoAssetFairValueNoncurrent" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapCryptoAssetFairValueNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaapOtherAssetsNoncurrent" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapOtherAssetsNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaapLiabilitiesCurrent" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaapAccountsPayableCurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapAccountsPayableCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaapAccruedLiabilitiesCurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapAccruedLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_CurrentPortionOfLongtermBorrowings" xlink:label="loc_SRXHCurrentPortionOfLongtermBorrowings" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_SRXHCurrentPortionOfLongtermBorrowings" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertibleDebtCurrent" xlink:label="loc_us-gaapConvertibleDebtCurrent" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapConvertibleDebtCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="loc_us-gaapOperatingLeaseLiabilityCurrent" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapOperatingLeaseLiabilityCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="loc_us-gaapAccruedIncomeTaxesCurrent" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapAccruedIncomeTaxesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaapOtherLiabilitiesCurrent" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapOtherLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="loc_us-gaapDeferredRevenueCurrent" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapDeferredRevenueCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermBorrowings" xlink:label="loc_us-gaapShortTermBorrowings" />
      <link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapShortTermBorrowings" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="loc_us-gaapLiabilitiesNoncurrent" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaapLongTermDebtNoncurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesNoncurrent" xlink:to="loc_us-gaapLongTermDebtNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="loc_us-gaapOperatingLeaseLiabilityNoncurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesNoncurrent" xlink:to="loc_us-gaapOperatingLeaseLiabilityNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertibleDebtNoncurrent" xlink:label="loc_us-gaapConvertibleDebtNoncurrent" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesNoncurrent" xlink:to="loc_us-gaapConvertibleDebtNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:label="loc_us-gaapDeferredIncomeTaxLiabilitiesNet" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesNoncurrent" xlink:to="loc_us-gaapDeferredIncomeTaxLiabilitiesNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaapLiabilities" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapLiabilitiesNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaapCommonStockValue" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapCommonStockValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaapPreferredStockValue" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapPreferredStockValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaapAdditionalPaidInCapitalCommonStock" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapAdditionalPaidInCapitalCommonStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalPreferredStock" xlink:label="loc_us-gaapAdditionalPaidInCapitalPreferredStock" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapAdditionalPaidInCapitalPreferredStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaapRetainedEarningsAccumulatedDeficit" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapRetainedEarningsAccumulatedDeficit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossNetOfTax" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaapLiabilitiesAndStockholdersEquity" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaapLiabilities" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaapStockholdersEquity" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/BalanceSheetsParenthetical" xlink:title="00000004 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/StatementsOfStockholdersEquity" xlink:title="00000005 - Statement - Condensed Consolidated Statements of Stockholders&apos; Equity" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/StatementsOfCashFlows" xlink:title="00000006 - Statement - Condensed Consolidated Statements of Cash Flows">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaapProfitLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapProfitLoss" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxCreditsAndAdjustments" xlink:label="loc_us-gaapIncomeTaxCreditsAndAdjustments" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncomeTaxCreditsAndAdjustments" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaapDepreciationAndAmortization" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapDepreciationAndAmortization" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseInterestExpense" xlink:label="loc_us-gaapFinanceLeaseInterestExpense" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapFinanceLeaseInterestExpense" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="loc_us-gaapGoodwillImpairmentLoss" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapGoodwillImpairmentLoss" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill" xlink:label="loc_us-gaapImpairmentOfIntangibleAssetsExcludingGoodwill" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapImpairmentOfIntangibleAssetsExcludingGoodwill" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaapDeferredIncomeTaxExpenseBenefit" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapDeferredIncomeTaxExpenseBenefit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaapShareBasedCompensation" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapShareBasedCompensation" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_BargainPurchaseGain" xlink:label="loc_SRXHBargainPurchaseGain" />
      <link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_SRXHBargainPurchaseGain" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfDebtDiscountPremium" xlink:label="loc_us-gaapAmortizationOfDebtDiscountPremium" />
      <link:calculationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapAmortizationOfDebtDiscountPremium" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_FutureTaxRecovery" xlink:label="loc_SRXHFutureTaxRecovery" />
      <link:calculationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_SRXHFutureTaxRecovery" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaapProvisionForDoubtfulAccounts" />
      <link:calculationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapProvisionForDoubtfulAccounts" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaapIncomeTaxExpenseBenefit" />
      <link:calculationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncomeTaxExpenseBenefit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CryptoAssetUnrealizedGainLossNonoperating" xlink:label="loc_us-gaapCryptoAssetUnrealizedGainLossNonoperating" />
      <link:calculationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapCryptoAssetUnrealizedGainLossNonoperating" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_LossesOnExtinguishmentOfDebt" xlink:label="loc_SRXHLossesOnExtinguishmentOfDebt" />
      <link:calculationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_SRXHLossesOnExtinguishmentOfDebt" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSaleOfInvestments" xlink:label="loc_us-gaapGainLossOnSaleOfInvestments" />
      <link:calculationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapGainLossOnSaleOfInvestments" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaapIncreaseDecreaseInAccountsReceivable" />
      <link:calculationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccountsReceivable" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaapIncreaseDecreaseInInventories" />
      <link:calculationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInInventories" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaapIncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
      <link:calculationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaapIncreaseDecreaseInAccountsPayable" />
      <link:calculationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccountsPayable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaapIncreaseDecreaseInAccruedLiabilities" />
      <link:calculationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccruedLiabilities" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNoncashIncomeExpense" xlink:label="loc_us-gaapOtherNoncashIncomeExpense" />
      <link:calculationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapOtherNoncashIncomeExpense" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentForAcquisitionCryptoAsset" xlink:label="loc_us-gaapPaymentForAcquisitionCryptoAsset" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapPaymentForAcquisitionCryptoAsset" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromDisposalCryptoAsset" xlink:label="loc_us-gaapProceedsFromDisposalCryptoAsset" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapProceedsFromDisposalCryptoAsset" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAcquiredFromAcquisition" xlink:label="loc_us-gaapCashAcquiredFromAcquisition" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapCashAcquiredFromAcquisition" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForProceedsFromBusinessesAndInterestInAffiliates" xlink:label="loc_us-gaapPaymentsForProceedsFromBusinessesAndInterestInAffiliates" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapPaymentsForProceedsFromBusinessesAndInterestInAffiliates" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_CapitalExpendituresNetOfDisposals" xlink:label="loc_SRXHCapitalExpendituresNetOfDisposals" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_SRXHCapitalExpendituresNetOfDisposals" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireIntangibleAssets" xlink:label="loc_us-gaapPaymentsToAcquireIntangibleAssets" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapPaymentsToAcquireIntangibleAssets" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaapProceedsFromIssuanceOfCommonStock" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromIssuanceOfCommonStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xlink:label="loc_us-gaapProceedsFromIssuanceOfPreferredStockAndPreferenceStock" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfSeniorDebt" xlink:label="loc_us-gaapRepaymentsOfSeniorDebt" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapRepaymentsOfSeniorDebt" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfConvertibleDebt" xlink:label="loc_us-gaapRepaymentsOfConvertibleDebt" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapRepaymentsOfConvertibleDebt" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit" xlink:label="loc_us-gaapProceedsFromLongTermLinesOfCredit" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromLongTermLinesOfCredit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfLongTermLinesOfCredit" xlink:label="loc_us-gaapRepaymentsOfLongTermLinesOfCredit" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapRepaymentsOfLongTermLinesOfCredit" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromOtherEquity" xlink:label="loc_us-gaapProceedsFromOtherEquity" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromOtherEquity" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromOtherShortTermDebt" xlink:label="loc_us-gaapProceedsFromOtherShortTermDebt" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromOtherShortTermDebt" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_DecreaseIncreaseInBalanceDueToRelatedParties" xlink:label="loc_SRXHDecreaseIncreaseInBalanceDueToRelatedParties" />
      <link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_SRXHDecreaseIncreaseInBalanceDueToRelatedParties" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromRelatedPartyDebt" xlink:label="loc_us-gaapProceedsFromRelatedPartyDebt" />
      <link:calculationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromRelatedPartyDebt" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfRelatedPartyDebt" xlink:label="loc_us-gaapRepaymentsOfRelatedPartyDebt" />
      <link:calculationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapRepaymentsOfRelatedPartyDebt" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="loc_us-gaapProceedsFromLinesOfCredit" />
      <link:calculationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromLinesOfCredit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfLinesOfCredit" xlink:label="loc_us-gaapRepaymentsOfLinesOfCredit" />
      <link:calculationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapRepaymentsOfLinesOfCredit" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromConvertibleDebt" xlink:label="loc_us-gaapProceedsFromConvertibleDebt" />
      <link:calculationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromConvertibleDebt" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_ProceedsOfLoansPayable" xlink:label="loc_SRXHProceedsOfLoansPayable" />
      <link:calculationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_SRXHProceedsOfLoansPayable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_PaymentOfLeaseLiability" xlink:label="loc_SRXHPaymentOfLeaseLiability" />
      <link:calculationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_SRXHPaymentOfLeaseLiability" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfFinancingCosts" xlink:label="loc_us-gaapPaymentsOfFinancingCosts" />
      <link:calculationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapPaymentsOfFinancingCosts" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_ProceedsFromPIPE" xlink:label="loc_SRXHProceedsFromPIPE" />
      <link:calculationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_SRXHProceedsFromPIPE" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRepurchaseOfEquity" xlink:label="loc_us-gaapPaymentsForRepurchaseOfEquity" />
      <link:calculationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapPaymentsForRepurchaseOfEquity" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInContinuingOperations" xlink:label="loc_us-gaapNetCashProvidedByUsedInContinuingOperations" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInContinuingOperations" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInContinuingOperations" xlink:to="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:type="arc" weight="1" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInContinuingOperations" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectIncludingDiscontinuedOperationAdjustment" xlink:label="loc_SRXHCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectIncludingDiscontinuedOperationAdjustment" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_SRXHCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectIncludingDiscontinuedOperationAdjustment" xlink:to="loc_us-gaapNetCashProvidedByUsedInContinuingOperations" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInDiscontinuedOperations" xlink:label="loc_us-gaapNetCashProvidedByUsedInDiscontinuedOperations" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_SRXHCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectIncludingDiscontinuedOperationAdjustment" xlink:to="loc_us-gaapNetCashProvidedByUsedInDiscontinuedOperations" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/NatureOfBusinessAndSummaryOfSignificantAccountingPolicies" xlink:title="999007 - Disclosure - Nature of business and summary of significant accounting policies" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/Revenue" xlink:title="999008 - Disclosure - Revenue" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/Inventories" xlink:title="999009 - Disclosure - Inventories" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/DigitalAssets" xlink:title="999010 - Disclosure - Digital assets" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/FixedAssets" xlink:title="999011 - Disclosure - Fixed assets" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/Debt" xlink:title="999012 - Disclosure - Debt" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/FairValueMeasurements" xlink:title="999013 - Disclosure - Fair value measurements" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/CommitmentsAndContingencies" xlink:title="999014 - Disclosure - Commitments and contingencies" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/WarrantsAndOtherEquityRelatedInstruments" xlink:title="999015 - Disclosure - Warrants and other equity related instruments" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/Share-basedCompensation" xlink:title="999016 - Disclosure - Share-based compensation" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/EmployeeBenefitPlans" xlink:title="999017 - Disclosure - Employee benefit plans" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/RelatedPartyTransactions" xlink:title="999018 - Disclosure - Related party transactions" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/IncomeTaxes" xlink:title="999019 - Disclosure - Income taxes" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/SegmentInformation" xlink:title="999020 - Disclosure - Segment information" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/Concentrations" xlink:title="999021 - Disclosure - Concentrations" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/LossPerShare" xlink:title="999022 - Disclosure - Loss per share" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/DiscontinuedOperations" xlink:title="999023 - Disclosure - Discontinued operations" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/SubsequentEvents" xlink:title="999024 - Disclosure - Subsequent events" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/BusinessCombinations" xlink:title="999025 - Disclosure - Business combinations" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/GoodwillAndIntangibleAssets" xlink:title="999026 - Disclosure - Goodwill and intangible assets" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/Leases" xlink:title="999027 - Disclosure - Leases" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/NatureOfBusinessAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:title="999028 - Disclosure - Nature of business and summary of significant accounting policies (Policies)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/RevenueTables" xlink:title="999029 - Disclosure - Revenue (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/InventoriesTables" xlink:title="999030 - Disclosure - Inventories (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/DigitalAssetsTables" xlink:title="999031 - Disclosure - Digital assets (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/FixedAssetsTables" xlink:title="999032 - Disclosure - Fixed assets (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/DebtTables" xlink:title="999033 - Disclosure - Debt (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/FairValueMeasurementsTables" xlink:title="999034 - Disclosure - Fair value measurements (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/WarrantsAndOtherEquityRelatedInstrumentsTables" xlink:title="999035 - Disclosure - Warrants and other equity related instruments (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/Share-basedCompensationTables" xlink:title="999036 - Disclosure - Share-based compensation (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/SegmentInformationTables" xlink:title="999037 - Disclosure - Segment information (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/LossPerShareTables" xlink:title="999038 - Disclosure - Loss per share (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/DiscontinuedOperationsTables" xlink:title="999039 - Disclosure - Discontinued operations (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/BusinessCombinationsTables" xlink:title="999040 - Disclosure - Business combinations (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/GoodwillAndIntangibleAssetsTables" xlink:title="999041 - Disclosure - Goodwill and intangible assets (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/LeasesTables" xlink:title="999042 - Disclosure - Leases (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/NatureOfBusinessAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:title="999043 - Disclosure - Nature of business and summary of significant accounting policies (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfInformationAboutRevenueChannelsDetails" xlink:title="999044 - Disclosure - Schedule of Information about Revenue Channels (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfInformationAboutRevenueChannelsDetailsParenthetical" xlink:title="999045 - Disclosure - Schedule of Information about Revenue Channels (Details) (Parenthetical)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/RevenueDetailsNarrative" xlink:title="999046 - Disclosure - Revenue (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfInventoriesDetails" xlink:title="999047 - Disclosure - Schedule of Inventories (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaapInventoryNet" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryFinishedGoodsAndWorkInProcess" xlink:label="loc_us-gaapInventoryFinishedGoodsAndWorkInProcess" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapInventoryNet" xlink:to="loc_us-gaapInventoryFinishedGoodsAndWorkInProcess" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherInventorySupplies" xlink:label="loc_us-gaapOtherInventorySupplies" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapInventoryNet" xlink:to="loc_us-gaapOtherInventorySupplies" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfCryptoAssetsDetails" xlink:title="999048 - Disclosure - Schedule of crypto assets (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfDigitalAssetPurchasesAndUnrealizedGainsLossesOnDigitalAssetsDetails" xlink:title="999049 - Disclosure - Schedule of digital asset purchases and unrealized gains (losses) on digital assets (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfFixedAssetsDetails" xlink:title="999050 - Disclosure - Schedule of fixed assets (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaapPropertyPlantAndEquipmentNet" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaapPropertyPlantAndEquipmentGross" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:to="loc_us-gaapPropertyPlantAndEquipmentGross" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaapAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:to="loc_us-gaapAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/FixedAssetsDetailsNarrative" xlink:title="999051 - Disclosure - Fixed assets (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfInitialCarryingAmountDetails" xlink:title="999052 - Disclosure - Schedule of initial carrying amount (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfCarryingAmountNotesDetails" xlink:title="999053 - Disclosure - Schedule of carrying amount notes (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/DebtDetailsNarrative" xlink:title="999054 - Disclosure - Debt (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfContractualMaturitiesOfFinancialLiabilitiesDetails" xlink:title="999055 - Disclosure - Schedule of contractual maturities of financial liabilities (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfOutstandingWarrantsDetails" xlink:title="999056 - Disclosure - Schedule of outstanding warrants (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/WarrantsAndOtherEquityRelatedInstrumentsDetailsNarrative" xlink:title="999057 - Disclosure - Warrants and other equity related instruments (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfRestrictedStockUnitsDetails" xlink:title="999058 - Disclosure - Schedule of restricted stock units (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfStockOptionsDetails" xlink:title="999059 - Disclosure - Schedule of stock options (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/Share-basedCompensationDetailsNarrative" xlink:title="999060 - Disclosure - Share-based compensation (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/EmployeeBenefitPlansDetailsNarrative" xlink:title="999061 - Disclosure - Employee benefit plans (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/RelatedPartyTransactionsDetailsNarrative" xlink:title="999062 - Disclosure - Related party transactions (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/IncomeTaxesDetailsNarrative" xlink:title="999063 - Disclosure - Income taxes (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfSegmentInformationDetails" xlink:title="999064 - Disclosure - Schedule of segment information (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaapGrossProfit" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:label="loc_us-gaapRevenueFromContractWithCustomerExcludingAssessedTax" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapGrossProfit" xlink:to="loc_us-gaapRevenueFromContractWithCustomerExcludingAssessedTax" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="loc_us-gaapCostOfGoodsAndServicesSold" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapGrossProfit" xlink:to="loc_us-gaapCostOfGoodsAndServicesSold" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaapOperatingExpenses" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_DiscretionaryMarketing" xlink:label="loc_SRXHDiscretionaryMarketing" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingExpenses" xlink:to="loc_SRXHDiscretionaryMarketing" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_OutboundFreight" xlink:label="loc_SRXHOutboundFreight" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingExpenses" xlink:to="loc_SRXHOutboundFreight" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_OtherSegmentExpenses" xlink:label="loc_SRXHOtherSegmentExpenses" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingExpenses" xlink:to="loc_SRXHOtherSegmentExpenses" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaapOperatingIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapGrossProfit" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapOperatingExpenses" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_us-gaapNonoperatingIncomeExpense" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet" xlink:label="loc_us-gaapInterestIncomeExpenseNonoperatingNet" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapInterestIncomeExpenseNonoperatingNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaapGainsLossesOnExtinguishmentOfDebt" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapGainsLossesOnExtinguishmentOfDebt" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CryptoAssetUnrealizedGainLossNonoperating" xlink:label="loc_us-gaapCryptoAssetUnrealizedGainLossNonoperating" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapCryptoAssetUnrealizedGainLossNonoperating" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaapOtherNonoperatingIncomeExpense" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapOtherNonoperatingIncomeExpense" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaapIncomeTaxExpenseBenefit" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="loc_us-gaapIncomeTaxExpenseBenefit" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfRevenueByGeographyDetails" xlink:title="999065 - Disclosure - Schedule of revenue by geography (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/SegmentInformationDetailsNarrative" xlink:title="999066 - Disclosure - Segment information (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ConcentrationsDetailsNarrative" xlink:title="999067 - Disclosure - Concentrations (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfBasicAndDilutedNetLossPerShareAttributableToCommonStockholdersDetails" xlink:title="999068 - Disclosure - Schedule of basic and diluted net loss per share attributable to common stockholders (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/LossPerShareDetailsNarrative" xlink:title="999069 - Disclosure - Loss per share (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfOperationsOfDiscontinuedOperationsDetails" xlink:title="999070 - Disclosure - Schedule of operations of discontinued operations (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfCashFlowOfDiscontinuedOperationsDetails" xlink:title="999071 - Disclosure - Schedule of cash flow of discontinued operations (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/SubsequentEventsDetailsNarrative" xlink:title="999072 - Disclosure - Subsequent events (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfCompanyCanadianOperatingSubsidiaryDetails" xlink:title="999073 - Disclosure - Schedule of company canadian operating subsidiary (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:label="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:label="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:to="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAccountsReceivables" xlink:label="loc_SRXHBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAccountsReceivables" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:to="loc_SRXHBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAccountsReceivables" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:label="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:to="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:label="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:to="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:label="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:to="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRightofuseAssetsOperatingLeases" xlink:label="loc_SRXHBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRightofuseAssetsOperatingLeases" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:to="loc_SRXHBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRightofuseAssetsOperatingLeases" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets" xlink:label="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:to="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:label="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:label="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:to="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedLiabilities" xlink:label="loc_SRXHBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedLiabilities" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:to="loc_SRXHBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedLiabilities" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:label="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:to="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilityShortterm" xlink:label="loc_SRXHBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilityShortterm" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:to="loc_SRXHBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilityShortterm" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilityLongTerm" xlink:label="loc_SRXHBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilityLongTerm" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:to="loc_SRXHBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilityLongTerm" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="loc_us-gaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfProFormaInformationDetails" xlink:title="999074 - Disclosure - Schedule of pro forma information (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/BusinessCombinationsDetailsNarrative" xlink:title="999075 - Disclosure - Business combinations (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfIntangibleAssetsDetails" xlink:title="999076 - Disclosure - Schedule of Intangible Assets (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfGoodwillDetails" xlink:title="999077 - Disclosure - Schedule of goodwill (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/GoodwillAndIntangibleAssetsDetailsNarrative" xlink:title="999078 - Disclosure - Goodwill and intangible assets (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/LeasesDetailsNarrative" xlink:title="999079 - Disclosure - Leases (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfAggregateAnnualLeasePaymentsDetails" xlink:title="999080 - Disclosure - Schedule of aggregate annual lease payments (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDue" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfShort-termBorrowingsDetails" xlink:title="999081 - Disclosure - Schedule of short-term borrowings (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermBorrowings" xlink:label="loc_us-gaapShortTermBorrowings" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LinesOfCreditCurrent" xlink:label="loc_us-gaapLinesOfCreditCurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapShortTermBorrowings" xlink:to="loc_us-gaapLinesOfCreditCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_BankIndebtedness" xlink:label="loc_SRXHBankIndebtedness" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapShortTermBorrowings" xlink:to="loc_SRXHBankIndebtedness" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfTermFacilitiesDetails" xlink:title="999082 - Disclosure - Schedule of term facilities (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfOtherBorrowingsDetails" xlink:title="999083 - Disclosure - Schedule of other borrowings (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfCurrentAndLong-termPortionOfTermFacilitiesDetails" xlink:title="999084 - Disclosure - Schedule of current and long-term portion of the term facilities (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaapLongTermDebt" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaapLongTermDebtCurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLongTermDebt" xlink:to="loc_us-gaapLongTermDebtCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaapLongTermDebtNoncurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLongTermDebt" xlink:to="loc_us-gaapLongTermDebtNoncurrent" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfRelatedPartyBalancesDetails" xlink:title="999085 - Disclosure - Schedule of related party balances (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfEffectiveIncomeTaxRateReconciliationDetailsParenthetical" xlink:title="999086 - Disclosure - Schedule of effective income tax rate reconciliation (Details) (Parenthetical)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfEffectiveIncomeTaxRateReconciliationDetails" xlink:title="999087 - Disclosure - Schedule of effective income tax rate reconciliation (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaapIncomeTaxExpenseBenefit" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryTaxRate" xlink:label="loc_SRXHIncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryTaxRate" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_SRXHIncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryTaxRate" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaapIncomeTaxReconciliationStateAndLocalIncomeTaxes" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_us-gaapIncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment" xlink:label="loc_us-gaapIncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_us-gaapIncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_IncomeTaxReconciliationChangeInDeferredTaxAssetsBargainpurchase" xlink:label="loc_SRXHIncomeTaxReconciliationChangeInDeferredTaxAssetsBargainpurchase" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_SRXHIncomeTaxReconciliationChangeInDeferredTaxAssetsBargainpurchase" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_EffectiveIncomeTaxRateReconciliationWarrantValuationAmount" xlink:label="loc_SRXHEffectiveIncomeTaxRateReconciliationWarrantValuationAmount" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_SRXHEffectiveIncomeTaxRateReconciliationWarrantValuationAmount" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseEquityInstrumentsAmount" xlink:label="loc_SRXHEffectiveIncomeTaxRateReconciliationNondeductibleExpenseEquityInstrumentsAmount" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_SRXHEffectiveIncomeTaxRateReconciliationNondeductibleExpenseEquityInstrumentsAmount" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_EffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentAmount" xlink:label="loc_SRXHEffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentAmount" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_SRXHEffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentAmount" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments" xlink:label="loc_us-gaapIncomeTaxReconciliationOtherAdjustments" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_us-gaapIncomeTaxReconciliationOtherAdjustments" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTax" xlink:label="loc_SRXHEffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTax" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations" xlink:to="loc_SRXHEffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTax" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsBargainPurchase" xlink:label="loc_SRXHEffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsBargainPurchase" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations" xlink:to="loc_SRXHEffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsBargainPurchase" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_EffectiveIncomeTaxRateReconciliationWarrantValuationPercent" xlink:label="loc_SRXHEffectiveIncomeTaxRateReconciliationWarrantValuationPercent" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations" xlink:to="loc_SRXHEffectiveIncomeTaxRateReconciliationWarrantValuationPercent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseEquityInstrumentsPercent" xlink:label="loc_SRXHEffectiveIncomeTaxRateReconciliationNondeductibleExpenseEquityInstrumentsPercent" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations" xlink:to="loc_SRXHEffectiveIncomeTaxRateReconciliationNondeductibleExpenseEquityInstrumentsPercent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_EffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentPercent" xlink:label="loc_SRXHEffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentPercent" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations" xlink:to="loc_SRXHEffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentPercent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsOther" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationTaxCreditsOther" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationTaxCreditsOther" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:title="999088 - Disclosure - Schedule of deferred tax assets and liabilities (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaapDeferredTaxAssetsGross" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_DeferredTaxAssetsFixedAssets" xlink:label="loc_SRXHDeferredTaxAssetsFixedAssets" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_SRXHDeferredTaxAssetsFixedAssets" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets" xlink:label="loc_us-gaapDeferredTaxAssetsGoodwillAndIntangibleAssets" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_us-gaapDeferredTaxAssetsGoodwillAndIntangibleAssets" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsInventory" xlink:label="loc_us-gaapDeferredTaxAssetsInventory" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_us-gaapDeferredTaxAssetsInventory" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_DeferredTaxAssetsStockOption" xlink:label="loc_SRXHDeferredTaxAssetsStockOption" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_SRXHDeferredTaxAssetsStockOption" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits" xlink:label="loc_us-gaapDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_us-gaapDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="loc_us-gaapDeferredTaxAssetsOther" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_us-gaapDeferredTaxAssetsOther" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_DeferredTaxAssetsOperatingLeaseAssetsLiabilities" xlink:label="loc_SRXHDeferredTaxAssetsOperatingLeaseAssetsLiabilities" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_SRXHDeferredTaxAssetsOperatingLeaseAssetsLiabilities" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="srxh-20251231.xsd#SRXH_DeferredTaxAssetsOperatingLossCarryforward" xlink:label="loc_SRXHDeferredTaxAssetsOperatingLossCarryforward" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_SRXHDeferredTaxAssetsOperatingLossCarryforward" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaapDeferredTaxAssetsNet" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaapDeferredTaxAssetsValuationAllowance" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsNet" xlink:to="loc_us-gaapDeferredTaxAssetsValuationAllowance" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://srxhealth.ca/role/ScheduleOfValuationAllowanceDetails" xlink:title="999089 - Disclosure - Schedule of valuation allowance (Details)" />
</link:linkbase>
