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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019b0280-99ad-7359-88f4-10debe7bfb36,g:f48ba74d-eabd-4898-ae3d-a2b0098a2a00-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.thalesgroup.com/role/tatdursultatglobalrsultatnetchargesparnatureStatement" xlink:type="simple" xlink:href="tha-2025-12-31.xsd#tatdursultatglobalrsultatnetchargesparnatureStatement"/>
  <link:calculationLink xlink:role="http://www.thalesgroup.com/role/tatdursultatglobalrsultatnetchargesparnatureStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_019b0280-99ae-7886-9f4b-363554486589" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromContinuingOperations_019b0280-99ae-7895-9fad-127e9b0186d4" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromContinuingOperations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLoss_019b0280-99ae-7886-9f4b-363554486589" xlink:to="loc_ifrs-full_ProfitLossFromContinuingOperations_019b0280-99ae-7895-9fad-127e9b0186d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromDiscontinuedOperations_019b0280-99ae-7576-a7c6-dcd57344bd55" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromDiscontinuedOperations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLoss_019b0280-99ae-7886-9f4b-363554486589" xlink:to="loc_ifrs-full_ProfitLossFromDiscontinuedOperations_019b0280-99ae-7576-a7c6-dcd57344bd55" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities_019b0280-99ae-70f6-9b07-b8060e60bb75" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_ResultatOperationnelCourant_019b0280-99ae-7b15-92fe-15c833c68b6a" xlink:href="tha-2025-12-31.xsd#tha_ResultatOperationnelCourant"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities_019b0280-99ae-70f6-9b07-b8060e60bb75" xlink:to="loc_tha_ResultatOperationnelCourant_019b0280-99ae-7b15-92fe-15c833c68b6a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_ResultatDesCessionsVariationsDePerimetreEtAutres_019b0280-99ae-7e9a-8eb6-edeedca2801d" xlink:href="tha-2025-12-31.xsd#tha_ResultatDesCessionsVariationsDePerimetreEtAutres"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities_019b0280-99ae-70f6-9b07-b8060e60bb75" xlink:to="loc_tha_ResultatDesCessionsVariationsDePerimetreEtAutres_019b0280-99ae-7e9a-8eb6-edeedca2801d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019b0280-99ae-77cd-a7f9-f7c0503cd93b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities_019b0280-99ae-70f6-9b07-b8060e60bb75" xlink:to="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019b0280-99ae-77cd-a7f9-f7c0503cd93b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_ResultatOperationnelCourant_019b0280-99ae-74ce-9dad-2174b60970d4" xlink:href="tha-2025-12-31.xsd#tha_ResultatOperationnelCourant"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CostOfSales_019b0280-99ae-715b-b477-11471378f675" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CostOfSales"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_ResultatOperationnelCourant_019b0280-99ae-74ce-9dad-2174b60970d4" xlink:to="loc_ifrs-full_CostOfSales_019b0280-99ae-715b-b477-11471378f675" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromContractsWithCustomers_019b0280-99ae-7c52-b7a0-8764251e5008" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromContractsWithCustomers"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_ResultatOperationnelCourant_019b0280-99ae-74ce-9dad-2174b60970d4" xlink:to="loc_ifrs-full_RevenueFromContractsWithCustomers_019b0280-99ae-7c52-b7a0-8764251e5008" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseOfRestructuringActivities_019b0280-99ae-7ae2-b26e-bbd0dc206486" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExpenseOfRestructuringActivities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_ResultatOperationnelCourant_019b0280-99ae-74ce-9dad-2174b60970d4" xlink:to="loc_ifrs-full_ExpenseOfRestructuringActivities_019b0280-99ae-7ae2-b26e-bbd0dc206486" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeneralAndAdministrativeExpense_019b0280-99ae-726d-971a-5303ff56dbf6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_ResultatOperationnelCourant_019b0280-99ae-74ce-9dad-2174b60970d4" xlink:to="loc_ifrs-full_GeneralAndAdministrativeExpense_019b0280-99ae-726d-971a-5303ff56dbf6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DistributionCosts_019b0280-99ae-77a1-83e3-4815722cc32e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DistributionCosts"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_ResultatOperationnelCourant_019b0280-99ae-74ce-9dad-2174b60970d4" xlink:to="loc_ifrs-full_DistributionCosts_019b0280-99ae-77a1-83e3-4815722cc32e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ResearchAndDevelopmentExpense_019b0280-99ae-7860-a568-a047e4e348f6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_ResultatOperationnelCourant_019b0280-99ae-74ce-9dad-2174b60970d4" xlink:to="loc_ifrs-full_ResearchAndDevelopmentExpense_019b0280-99ae-7860-a568-a047e4e348f6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromContinuingOperations_019b0280-99ae-7495-ad1a-d2019c7b8037" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_ResultatOperationnelApresResultatDesSocietesMisesEnEquivalence_019b0280-99ae-7a11-9bd0-58dd9c156584" xlink:href="tha-2025-12-31.xsd#tha_ResultatOperationnelApresResultatDesSocietesMisesEnEquivalence"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromContinuingOperations_019b0280-99ae-7495-ad1a-d2019c7b8037" xlink:to="loc_tha_ResultatOperationnelApresResultatDesSocietesMisesEnEquivalence_019b0280-99ae-7a11-9bd0-58dd9c156584" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_019b0280-99ae-7d0d-92c5-b75b96d9121c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromContinuingOperations_019b0280-99ae-7495-ad1a-d2019c7b8037" xlink:to="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_019b0280-99ae-7d0d-92c5-b75b96d9121c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_AutresResultatsFinanciers_019b0280-99ae-7f2d-aa6e-ae955447cc4e" xlink:href="tha-2025-12-31.xsd#tha_AutresResultatsFinanciers"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromContinuingOperations_019b0280-99ae-7495-ad1a-d2019c7b8037" xlink:to="loc_tha_AutresResultatsFinanciers_019b0280-99ae-7f2d-aa6e-ae955447cc4e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_ResultatFinancierSurRetraitesEtAvantagesALongTerme_019b0280-99ae-7609-a799-cc3680b5fb68" xlink:href="tha-2025-12-31.xsd#tha_ResultatFinancierSurRetraitesEtAvantagesALongTerme"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromContinuingOperations_019b0280-99ae-7495-ad1a-d2019c7b8037" xlink:to="loc_tha_ResultatFinancierSurRetraitesEtAvantagesALongTerme_019b0280-99ae-7609-a799-cc3680b5fb68" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_InteretsFinanciersNets_019b0280-99ae-7386-a462-b3b17d45989f" xlink:href="tha-2025-12-31.xsd#tha_InteretsFinanciersNets"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromContinuingOperations_019b0280-99ae-7495-ad1a-d2019c7b8037" xlink:to="loc_tha_InteretsFinanciersNets_019b0280-99ae-7386-a462-b3b17d45989f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_ResultatOperationnelApresResultatDesSocietesMisesEnEquivalence_019b0280-99ae-76be-b476-0319e361ab4c" xlink:href="tha-2025-12-31.xsd#tha_ResultatOperationnelApresResultatDesSocietesMisesEnEquivalence"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_019b0280-99ae-7b92-99f1-b72156011377" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_ResultatOperationnelApresResultatDesSocietesMisesEnEquivalence_019b0280-99ae-76be-b476-0319e361ab4c" xlink:to="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_019b0280-99ae-7b92-99f1-b72156011377" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities_019b0280-99ae-7808-9495-42b27a48d350" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_ResultatOperationnelApresResultatDesSocietesMisesEnEquivalence_019b0280-99ae-76be-b476-0319e361ab4c" xlink:to="loc_ifrs-full_ProfitLossFromOperatingActivities_019b0280-99ae-7808-9495-42b27a48d350" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent_019b0280-99ae-7725-a538-e27ffcee5510" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity_019b0280-99ae-74ba-97a8-c1b3754f50c4" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent_019b0280-99ae-7725-a538-e27ffcee5510" xlink:to="loc_ifrs-full_ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity_019b0280-99ae-74ba-97a8-c1b3754f50c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity_019b0280-99ae-7f11-960f-98489174deee" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent_019b0280-99ae-7725-a538-e27ffcee5510" xlink:to="loc_ifrs-full_ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity_019b0280-99ae-7f11-960f-98489174deee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_InteretsFinanciersNets_019b0280-99ae-7689-899f-94a07877b7d7" xlink:href="tha-2025-12-31.xsd#tha_InteretsFinanciersNets"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_InteretsFinanciersRelatifsALaDetteBrute_019b0280-99ae-7776-ae99-65f4ce68e5d7" xlink:href="tha-2025-12-31.xsd#tha_InteretsFinanciersRelatifsALaDetteBrute"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_InteretsFinanciersNets_019b0280-99ae-7689-899f-94a07877b7d7" xlink:to="loc_tha_InteretsFinanciersRelatifsALaDetteBrute_019b0280-99ae-7776-ae99-65f4ce68e5d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestIncomeOnCashAndCashEquivalents_019b0280-99ae-775a-b1d2-07437a7427fc" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestIncomeOnCashAndCashEquivalents"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_InteretsFinanciersNets_019b0280-99ae-7689-899f-94a07877b7d7" xlink:to="loc_ifrs-full_InterestIncomeOnCashAndCashEquivalents_019b0280-99ae-775a-b1d2-07437a7427fc" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.thalesgroup.com/role/tatdursultatglobalrsultatnetchargesparnatureStatement_1" xlink:type="simple" xlink:href="tha-2025-12-31.xsd#tatdursultatglobalrsultatnetchargesparnatureStatement_1"/>
  <link:calculationLink xlink:role="http://www.thalesgroup.com/role/tatdursultatglobalrsultatnetchargesparnatureStatement_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_019b0280-99ae-7c8c-aaaf-938a8d486576" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests_019b0280-99ae-75a8-becc-9b71f9a92bff" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToNoncontrollingInterests"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLoss_019b0280-99ae-7c8c-aaaf-938a8d486576" xlink:to="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests_019b0280-99ae-75a8-becc-9b71f9a92bff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent_019b0280-99ae-7327-b8f9-064e48b0e6a2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLoss_019b0280-99ae-7c8c-aaaf-938a8d486576" xlink:to="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent_019b0280-99ae-7327-b8f9-064e48b0e6a2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.thalesgroup.com/role/tatdursultatglobalcomposantesdesautreslmentsdursultatglobalprsentesnettesdimptStatement" xlink:type="simple" xlink:href="tha-2025-12-31.xsd#tatdursultatglobalcomposantesdesautreslmentsdursultatglobalprsentesnettesdimptStatement"/>
  <link:calculationLink xlink:role="http://www.thalesgroup.com/role/tatdursultatglobalcomposantesdesautreslmentsdursultatglobalprsentesnettesdimptStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncome_019b0280-99ae-78ac-8fb7-acbaa94de645" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-7bd7-b4b0-3f9c203047d3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome_019b0280-99ae-78ac-8fb7-acbaa94de645" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-7bd7-b4b0-3f9c203047d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-77b7-bec4-13cae147e189" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome_019b0280-99ae-78ac-8fb7-acbaa94de645" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-77b7-bec4-13cae147e189" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome_019b0280-99ae-7f4a-8ed3-f6b2bb694bc4" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_019b0280-99ae-79a2-9313-faf8768caf31" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ComprehensiveIncome_019b0280-99ae-7f4a-8ed3-f6b2bb694bc4" xlink:to="loc_ifrs-full_ProfitLoss_019b0280-99ae-79a2-9313-faf8768caf31" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncome_019b0280-99ae-7040-aa30-580f8a6b05b5" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ComprehensiveIncome_019b0280-99ae-7f4a-8ed3-f6b2bb694bc4" xlink:to="loc_ifrs-full_OtherComprehensiveIncome_019b0280-99ae-7040-aa30-580f8a6b05b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-751a-bc05-3d32d5984d68" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_019b0280-99ae-7327-b5b6-b78623f0cda2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-751a-bc05-3d32d5984d68" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_019b0280-99ae-7327-b5b6-b78623f0cda2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments_019b0280-99ae-791a-87b1-f4ad4d6469d4" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-751a-bc05-3d32d5984d68" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments_019b0280-99ae-791a-87b1-f4ad4d6469d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_019b0280-99ae-7e05-8e56-4864a35dcfd2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-751a-bc05-3d32d5984d68" xlink:to="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_019b0280-99ae-7e05-8e56-4864a35dcfd2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossBeforeTax_019b0280-99ae-7ff2-a709-ea1702c372e8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossBeforeTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-751a-bc05-3d32d5984d68" xlink:to="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossBeforeTax_019b0280-99ae-7ff2-a709-ea1702c372e8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_AutresElementsDuResultatGlobalProvenantDesActivitesAbandoneesQuiNeSerontPasReclassesEnResultatNetAvantImpot_019b0280-99ae-7cbc-9670-3cf9b2e80681" xlink:href="tha-2025-12-31.xsd#tha_AutresElementsDuResultatGlobalProvenantDesActivitesAbandoneesQuiNeSerontPasReclassesEnResultatNetAvantImpot"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-751a-bc05-3d32d5984d68" xlink:to="loc_tha_AutresElementsDuResultatGlobalProvenantDesActivitesAbandoneesQuiNeSerontPasReclassesEnResultatNetAvantImpot_019b0280-99ae-7cbc-9670-3cf9b2e80681" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-7d0f-90d7-4d3a5f6c4426" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-7096-9557-e9b752d6942f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-7d0f-90d7-4d3a5f6c4426" xlink:to="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-7096-9557-e9b752d6942f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges_019b0280-99ae-7b30-899b-b62358973e51" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-7d0f-90d7-4d3a5f6c4426" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges_019b0280-99ae-7b30-899b-b62358973e51" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_AutresElementsDuResultatGlobalProvenantDesActivitesAbandoneesQuiSerontReclassesEnResultatNetNetsDimpot_019b0280-99ae-7ff1-bdf9-25be52983e2f" xlink:href="tha-2025-12-31.xsd#tha_AutresElementsDuResultatGlobalProvenantDesActivitesAbandoneesQuiSerontReclassesEnResultatNetNetsDimpot"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-7d0f-90d7-4d3a5f6c4426" xlink:to="loc_tha_AutresElementsDuResultatGlobalProvenantDesActivitesAbandoneesQuiSerontReclassesEnResultatNetNetsDimpot_019b0280-99ae-7ff1-bdf9-25be52983e2f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_019b0280-99ae-72eb-b1d3-cd481948cbef" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_019b0280-99ae-7d0f-90d7-4d3a5f6c4426" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_019b0280-99ae-72eb-b1d3-cd481948cbef" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.thalesgroup.com/role/tatdelasituationfinancirecourantnoncourantStatement" xlink:type="simple" xlink:href="tha-2025-12-31.xsd#tatdelasituationfinancirecourantnoncourantStatement"/>
  <link:calculationLink xlink:role="http://www.thalesgroup.com/role/tatdelasituationfinancirecourantnoncourantStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLiabilities_019b0280-99ae-7cff-b885-686d0d6c565b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentDerivativeFinancialLiabilities_019b0280-99ae-75d5-a8d9-b1cde44dae7a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentDerivativeFinancialLiabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities_019b0280-99ae-7cff-b885-686d0d6c565b" xlink:to="loc_ifrs-full_NoncurrentDerivativeFinancialLiabilities_019b0280-99ae-75d5-a8d9-b1cde44dae7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxLiabilities_019b0280-99ae-775e-afcd-bc21ed90316c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities_019b0280-99ae-7cff-b885-686d0d6c565b" xlink:to="loc_ifrs-full_DeferredTaxLiabilities_019b0280-99ae-775e-afcd-bc21ed90316c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentProvisionsForEmployeeBenefits_019b0280-9a8d-7899-b758-3cfe80a050a3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentProvisionsForEmployeeBenefits"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities_019b0280-99ae-7cff-b885-686d0d6c565b" xlink:to="loc_ifrs-full_NoncurrentProvisionsForEmployeeBenefits_019b0280-9a8d-7899-b758-3cfe80a050a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LongtermBorrowings_019b0280-9a8d-766d-9a9b-9f22c77d6254" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LongtermBorrowings"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities_019b0280-99ae-7cff-b885-686d0d6c565b" xlink:to="loc_ifrs-full_LongtermBorrowings_019b0280-9a8d-766d-9a9b-9f22c77d6254" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentLiabilities_019b0280-9a8d-7187-b4c1-3c7929e7dfbd" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherShorttermProvisions_019b0280-9a8d-726f-9c5c-eaab0edcf394" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherShorttermProvisions"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_019b0280-9a8d-7187-b4c1-3c7929e7dfbd" xlink:to="loc_ifrs-full_OtherShorttermProvisions_019b0280-9a8d-726f-9c5c-eaab0edcf394" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_FournisseursEtAutresDettesCourantes_019b0280-9a8d-73d2-b772-36b260b29128" xlink:href="tha-2025-12-31.xsd#tha_FournisseursEtAutresDettesCourantes"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_019b0280-9a8d-7187-b4c1-3c7929e7dfbd" xlink:to="loc_tha_FournisseursEtAutresDettesCourantes_019b0280-9a8d-73d2-b772-36b260b29128" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentDerivativeFinancialLiabilities_019b0280-9a8d-7ab2-b1a1-54743efd4978" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDerivativeFinancialLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_019b0280-9a8d-7187-b4c1-3c7929e7dfbd" xlink:to="loc_ifrs-full_CurrentDerivativeFinancialLiabilities_019b0280-9a8d-7ab2-b1a1-54743efd4978" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxLiabilities_019b0280-9a8d-7541-be34-56865eb15393" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxLiabilities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_019b0280-9a8d-7187-b4c1-3c7929e7dfbd" xlink:to="loc_ifrs-full_CurrentTaxLiabilities_019b0280-9a8d-7541-be34-56865eb15393" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentContractLiabilities_019b0280-9a8d-7db5-8cf4-de6c3e4dfcbf" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentContractLiabilities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_019b0280-9a8d-7187-b4c1-3c7929e7dfbd" xlink:to="loc_ifrs-full_CurrentContractLiabilities_019b0280-9a8d-7db5-8cf4-de6c3e4dfcbf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShorttermBorrowings_019b0280-9a8d-7a42-90c4-ab8f48bd347e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermBorrowings"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_019b0280-9a8d-7187-b4c1-3c7929e7dfbd" xlink:to="loc_ifrs-full_ShorttermBorrowings_019b0280-9a8d-7a42-90c4-ab8f48bd347e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAssets_019c8f5b-7406-74db-b31c-0f06da223aa1" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_StocksEnCoursEtCoutsDExecutionDesContrats_019c8f5b-7406-7e56-9af4-f9ab49e79069" xlink:href="tha-2025-12-31.xsd#tha_StocksEnCoursEtCoutsDExecutionDesContrats"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_019c8f5b-7406-74db-b31c-0f06da223aa1" xlink:to="loc_tha_StocksEnCoursEtCoutsDExecutionDesContrats_019c8f5b-7406-7e56-9af4-f9ab49e79069" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentContractAssets_019c8f5b-7406-7eac-bd09-bbd44c0f6515" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentContractAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_019c8f5b-7406-74db-b31c-0f06da223aa1" xlink:to="loc_ifrs-full_CurrentContractAssets_019c8f5b-7406-7eac-bd09-bbd44c0f6515" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAdvancesToSuppliers_019c8f5b-7406-7a0c-bfbc-38a94a0ea909" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAdvancesToSuppliers"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_019c8f5b-7406-74db-b31c-0f06da223aa1" xlink:to="loc_ifrs-full_CurrentAdvancesToSuppliers_019c8f5b-7406-7a0c-bfbc-38a94a0ea909" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_ClientsEtAutresCreancesCourantes_019c8f5b-7406-7dec-a548-9b937c25493b" xlink:href="tha-2025-12-31.xsd#tha_ClientsEtAutresCreancesCourantes"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_019c8f5b-7406-74db-b31c-0f06da223aa1" xlink:to="loc_tha_ClientsEtAutresCreancesCourantes_019c8f5b-7406-7dec-a548-9b937c25493b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentDerivativeFinancialAssets_019c8f5b-7406-7d73-8f9e-5a89d00ce0da" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDerivativeFinancialAssets"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_019c8f5b-7406-74db-b31c-0f06da223aa1" xlink:to="loc_ifrs-full_CurrentDerivativeFinancialAssets_019c8f5b-7406-7d73-8f9e-5a89d00ce0da" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxAssetsCurrent_019c8f5b-7406-7f84-adec-5def22671d0d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxAssetsCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_019c8f5b-7406-74db-b31c-0f06da223aa1" xlink:to="loc_ifrs-full_CurrentTaxAssetsCurrent_019c8f5b-7406-7f84-adec-5def22671d0d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_PretsEnCours_019c8f5b-7406-799a-84b8-956fcbb0b33d" xlink:href="tha-2025-12-31.xsd#tha_PretsEnCours"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_019c8f5b-7406-74db-b31c-0f06da223aa1" xlink:to="loc_tha_PretsEnCours_019c8f5b-7406-799a-84b8-956fcbb0b33d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherCurrentFinancialAssets_019c8f5b-7406-7aae-856f-377cefa7a5f3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentFinancialAssets"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_019c8f5b-7406-74db-b31c-0f06da223aa1" xlink:to="loc_ifrs-full_OtherCurrentFinancialAssets_019c8f5b-7406-7aae-856f-377cefa7a5f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalents_019c8f5b-7406-7428-8572-6ee0746adc0b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_019c8f5b-7406-74db-b31c-0f06da223aa1" xlink:to="loc_ifrs-full_CashAndCashEquivalents_019c8f5b-7406-7428-8572-6ee0746adc0b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParent_019b0280-9a8d-70b0-ae76-464e7df16921" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslation_019b0280-9a8d-78be-a178-ee7fefa91149" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslation"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParent_019b0280-9a8d-70b0-ae76-464e7df16921" xlink:to="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslation_019b0280-9a8d-78be-a178-ee7fefa91149" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_AutresReservesDiverses_019b0280-9a8d-7c13-985e-bf7a4b033277" xlink:href="tha-2025-12-31.xsd#tha_AutresReservesDiverses"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParent_019b0280-9a8d-70b0-ae76-464e7df16921" xlink:to="loc_tha_AutresReservesDiverses_019b0280-9a8d-7c13-985e-bf7a4b033277" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TreasuryShares_019b0280-9a8d-7301-9e86-db6c82178e21" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TreasuryShares"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParent_019b0280-9a8d-70b0-ae76-464e7df16921" xlink:to="loc_ifrs-full_TreasuryShares_019b0280-9a8d-7301-9e86-db6c82178e21" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAndLiabilities_019b0280-9a8d-733d-b3e6-e3ab7650c184" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAndLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentLiabilities_019b0280-9a8d-7cb9-be98-2e9d69593276" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAndLiabilities_019b0280-9a8d-733d-b3e6-e3ab7650c184" xlink:to="loc_ifrs-full_CurrentLiabilities_019b0280-9a8d-7cb9-be98-2e9d69593276" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLiabilities_019b0280-9a8d-75a4-bb7c-2069185f6597" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAndLiabilities_019b0280-9a8d-733d-b3e6-e3ab7650c184" xlink:to="loc_ifrs-full_NoncurrentLiabilities_019b0280-9a8d-75a4-bb7c-2069185f6597" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_019b0280-9a8d-7f18-bbef-59c094bf3ded" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAndLiabilities_019b0280-9a8d-733d-b3e6-e3ab7650c184" xlink:to="loc_ifrs-full_Equity_019b0280-9a8d-7f18-bbef-59c094bf3ded" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_019b0280-9a8d-7f02-82b8-89e8781f391c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParent_019b0280-9a8d-7006-904c-016c08a771ed" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Equity_019b0280-9a8d-7f02-82b8-89e8781f391c" xlink:to="loc_ifrs-full_EquityAttributableToOwnersOfParent_019b0280-9a8d-7006-904c-016c08a771ed" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterests_019b0280-9a8d-7279-a108-c818cebf343e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncontrollingInterests"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Equity_019b0280-9a8d-7f02-82b8-89e8781f391c" xlink:to="loc_ifrs-full_NoncontrollingInterests_019b0280-9a8d-7279-a108-c818cebf343e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssets_019b0280-9a8d-7baf-a09a-02ef418723d3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod_019b0280-9a8d-78ee-872e-955eaec6af59" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentAccountedForUsingEquityMethod"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_019b0280-9a8d-7baf-a09a-02ef418723d3" xlink:to="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod_019b0280-9a8d-78ee-872e-955eaec6af59" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxAssets_019b0280-9a8d-77d7-bb13-04867d6ad64b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_019b0280-9a8d-7baf-a09a-02ef418723d3" xlink:to="loc_ifrs-full_DeferredTaxAssets_019b0280-9a8d-77d7-bb13-04867d6ad64b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill_019b0280-9a8d-710d-aa4b-2ea0aac8aba4" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_019b0280-9a8d-7baf-a09a-02ef418723d3" xlink:to="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill_019b0280-9a8d-710d-aa4b-2ea0aac8aba4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_019b0280-9a8d-76cd-838c-92b2dd6382c6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_019b0280-9a8d-7baf-a09a-02ef418723d3" xlink:to="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_019b0280-9a8d-76cd-838c-92b2dd6382c6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Goodwill_019b0280-9a8d-7af0-986d-8f98be85978f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Goodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_019b0280-9a8d-7baf-a09a-02ef418723d3" xlink:to="loc_ifrs-full_Goodwill_019b0280-9a8d-7af0-986d-8f98be85978f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod_019b0280-9a8d-7629-ac93-48831712d68c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_019b0280-9a8d-7baf-a09a-02ef418723d3" xlink:to="loc_ifrs-full_NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod_019b0280-9a8d-7629-ac93-48831712d68c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherNoncurrentFinancialAssets_019b0280-9a8d-7879-a7ef-bf13caa100de" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentFinancialAssets"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_019b0280-9a8d-7baf-a09a-02ef418723d3" xlink:to="loc_ifrs-full_OtherNoncurrentFinancialAssets_019b0280-9a8d-7879-a7ef-bf13caa100de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Assets_019b0280-9a8d-70ec-8049-567b6880dc1e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAssets_019b0280-9a8d-7d7c-997d-2db63e44bfd7" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Assets_019b0280-9a8d-70ec-8049-567b6880dc1e" xlink:to="loc_ifrs-full_CurrentAssets_019b0280-9a8d-7d7c-997d-2db63e44bfd7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssets_019b0280-9a8d-73f5-a3c7-16b07af6a4c2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Assets_019b0280-9a8d-70ec-8049-567b6880dc1e" xlink:to="loc_ifrs-full_NoncurrentAssets_019b0280-9a8d-73f5-a3c7-16b07af6a4c2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.thalesgroup.com/role/tatdesfluxdetrsoreriemthodeindirecteStatement" xlink:type="simple" xlink:href="tha-2025-12-31.xsd#tatdesfluxdetrsoreriemthodeindirecteStatement"/>
  <link:calculationLink xlink:role="http://www.thalesgroup.com/role/tatdesfluxdetrsoreriemthodeindirecteStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_tha_InvestissementNetDExploitation_019b0280-9a8d-7474-91d1-544a4125ce7f" xlink:href="tha-2025-12-31.xsd#tha_InvestissementNetDExploitation"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_019b0280-9a8d-7191-8130-c3a88f1684cc" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_InvestissementNetDExploitation_019b0280-9a8d-7474-91d1-544a4125ce7f" xlink:to="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_019b0280-9a8d-7191-8130-c3a88f1684cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_019b0280-9a8d-7e47-99d8-8d90e78bc748" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_InvestissementNetDExploitation_019b0280-9a8d-7474-91d1-544a4125ce7f" xlink:to="loc_ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_019b0280-9a8d-7e47-99d8-8d90e78bc748" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_InvestissementFinancierNet_019b0280-9a8d-7026-9578-3a59726425c7" xlink:href="tha-2025-12-31.xsd#tha_InvestissementFinancierNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_019b0280-9a8d-7ede-9db1-349d0325ad09" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_InvestissementFinancierNet_019b0280-9a8d-7026-9578-3a59726425c7" xlink:to="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_019b0280-9a8d-7ede-9db1-349d0325ad09" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_TresorerieEtEquivalentsDeTresorerieDeLaFilialeOuDeLuniteOperationnelleCedee_019b0280-9a8d-77a2-8e31-ff9e37fea48e" xlink:href="tha-2025-12-31.xsd#tha_TresorerieEtEquivalentsDeTresorerieDeLaFilialeOuDeLuniteOperationnelleCedee"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_InvestissementFinancierNet_019b0280-9a8d-7026-9578-3a59726425c7" xlink:to="loc_tha_TresorerieEtEquivalentsDeTresorerieDeLaFilialeOuDeLuniteOperationnelleCedee_019b0280-9a8d-77a2-8e31-ff9e37fea48e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_TresorerieEtEquivalentsDeTresorerieDeLaFilialeOuDeLuniteOperationnelleAcquise_019b0280-9a8d-70b9-8825-b55b0eea8806" xlink:href="tha-2025-12-31.xsd#tha_TresorerieEtEquivalentsDeTresorerieDeLaFilialeOuDeLuniteOperationnelleAcquise"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_InvestissementFinancierNet_019b0280-9a8d-7026-9578-3a59726425c7" xlink:to="loc_tha_TresorerieEtEquivalentsDeTresorerieDeLaFilialeOuDeLuniteOperationnelleAcquise_019b0280-9a8d-70b9-8825-b55b0eea8806" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_DiminutionAugmentationDesActifsFinanciersCourants_019b0280-9a8d-7275-9c43-68a64eb3327f" xlink:href="tha-2025-12-31.xsd#tha_DiminutionAugmentationDesActifsFinanciersCourants"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_InvestissementFinancierNet_019b0280-9a8d-7026-9578-3a59726425c7" xlink:to="loc_tha_DiminutionAugmentationDesActifsFinanciersCourants_019b0280-9a8d-7275-9c43-68a64eb3327f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties_019b0280-9a8d-73b6-993d-bac0264a5905" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_InvestissementFinancierNet_019b0280-9a8d-7026-9578-3a59726425c7" xlink:to="loc_ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties_019b0280-9a8d-73b6-993d-bac0264a5905" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_019b0280-9a8d-78ee-bbc6-b5e383c073a2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_InvestissementFinancierNet_019b0280-9a8d-7026-9578-3a59726425c7" xlink:to="loc_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_019b0280-9a8d-78ee-bbc6-b5e383c073a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_DiminutionAugmentationDesAutresActifsFinanciersNonCourants_019b0280-9a8d-77ec-a021-cc9ddae620bd" xlink:href="tha-2025-12-31.xsd#tha_DiminutionAugmentationDesAutresActifsFinanciersNonCourants"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_InvestissementFinancierNet_019b0280-9a8d-7026-9578-3a59726425c7" xlink:to="loc_tha_DiminutionAugmentationDesAutresActifsFinanciersNonCourants_019b0280-9a8d-77ec-a021-cc9ddae620bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_019b0280-9a8d-7434-92c4-ad82fc624134" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesContinuingOperations_019b0280-9a8d-7925-bb30-bfb86b0dd311" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesContinuingOperations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_019b0280-9a8d-7434-92c4-ad82fc624134" xlink:to="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesContinuingOperations_019b0280-9a8d-7925-bb30-bfb86b0dd311" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations_019b0280-9a8d-72fd-a933-941c875e780d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_019b0280-9a8d-7434-92c4-ad82fc624134" xlink:to="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations_019b0280-9a8d-72fd-a933-941c875e780d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019b0280-9a8d-7d3f-b4a5-1fa339e925ad" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_019b0280-9a8d-7b15-9f80-cbdadb28f3ee" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019b0280-9a8d-7d3f-b4a5-1fa339e925ad" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_019b0280-9a8d-7b15-9f80-cbdadb28f3ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_019b0280-9a8d-7d80-bb27-4e97c08ae773" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019b0280-9a8d-7d3f-b4a5-1fa339e925ad" xlink:to="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_019b0280-9a8d-7d80-bb27-4e97c08ae773" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_019b0280-9a8d-78c1-b4f5-d20214f2ac05" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019b0280-9a8d-7d3f-b4a5-1fa339e925ad" xlink:to="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_019b0280-9a8d-78c1-b4f5-d20214f2ac05" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_ImpactDesVariationsDeChangeLieesAuxActivitesPoursuivies_019b0280-9a8d-7b98-91d8-3890ac685b46" xlink:href="tha-2025-12-31.xsd#tha_ImpactDesVariationsDeChangeLieesAuxActivitesPoursuivies"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019b0280-9a8d-7d3f-b4a5-1fa339e925ad" xlink:to="loc_tha_ImpactDesVariationsDeChangeLieesAuxActivitesPoursuivies_019b0280-9a8d-7b98-91d8-3890ac685b46" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_ImpactDesVariationsDeChangeLieesAuxActivitesAbandonnees_019b0280-9a8d-7ad6-926e-5885ad0f8459" xlink:href="tha-2025-12-31.xsd#tha_ImpactDesVariationsDeChangeLieesAuxActivitesAbandonnees"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019b0280-9a8d-7d3f-b4a5-1fa339e925ad" xlink:to="loc_tha_ImpactDesVariationsDeChangeLieesAuxActivitesAbandonnees_019b0280-9a8d-7ad6-926e-5885ad0f8459" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_019b0280-9a8d-7333-b2bc-041053618567" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations_019b0280-9a8d-7e0c-96b3-476f1da60941" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_019b0280-9a8d-7333-b2bc-041053618567" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations_019b0280-9a8d-7e0c-96b3-476f1da60941" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations_019b0280-9a8d-7785-989a-8584b8ee61a1" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_019b0280-9a8d-7333-b2bc-041053618567" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations_019b0280-9a8d-7785-989a-8584b8ee61a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_019b0280-9a8d-7860-98a8-04a4e0337a74" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations_019b0280-9a8d-7ab0-a4f5-95be0824e8ba" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_019b0280-9a8d-7860-98a8-04a4e0337a74" xlink:to="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations_019b0280-9a8d-7ab0-a4f5-95be0824e8ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations_019b0280-9a8d-779f-b5ee-d4a78e04cbcd" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_019b0280-9a8d-7860-98a8-04a4e0337a74" xlink:to="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations_019b0280-9a8d-779f-b5ee-d4a78e04cbcd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations_019b0280-9a8d-7ba6-bcc5-713e0c563c07" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities_019b0280-9a8d-71de-863a-e83518bb4109" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestPaidClassifiedAsOperatingActivities"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations_019b0280-9a8d-7ba6-bcc5-713e0c563c07" xlink:to="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities_019b0280-9a8d-71de-863a-e83518bb4109" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_VersementDesContributionsDeRetraiteRegimesAPrestationsDefinies_019b0280-9a8d-71d1-b1bb-0d9afc5a0cb0" xlink:href="tha-2025-12-31.xsd#tha_VersementDesContributionsDeRetraiteRegimesAPrestationsDefinies"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations_019b0280-9a8d-7ba6-bcc5-713e0c563c07" xlink:to="loc_tha_VersementDesContributionsDeRetraiteRegimesAPrestationsDefinies_019b0280-9a8d-71d1-b1bb-0d9afc5a0cb0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_VariationDuBesoinEnFondsDeRoulementEtDesProvisionsPourRisquesEtCharges_019b0280-9a8d-7812-b1ce-b9f914b5be1c" xlink:href="tha-2025-12-31.xsd#tha_VariationDuBesoinEnFondsDeRoulementEtDesProvisionsPourRisquesEtCharges"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations_019b0280-9a8d-7ba6-bcc5-713e0c563c07" xlink:to="loc_tha_VariationDuBesoinEnFondsDeRoulementEtDesProvisionsPourRisquesEtCharges_019b0280-9a8d-7812-b1ce-b9f914b5be1c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestReceivedClassifiedAsOperatingActivities_019b0280-9a8d-7aa0-88db-28dd62578d0c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestReceivedClassifiedAsOperatingActivities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations_019b0280-9a8d-7ba6-bcc5-713e0c563c07" xlink:to="loc_ifrs-full_InterestReceivedClassifiedAsOperatingActivities_019b0280-9a8d-7aa0-88db-28dd62578d0c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-799e-911c-ecdf11f4f18b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations_019b0280-9a8d-7ba6-bcc5-713e0c563c07" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-799e-911c-ecdf11f4f18b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_019b0280-9a8d-7d66-b8f8-e8f5d642acf6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesContinuingOperations_019b0280-9a8d-7ba6-bcc5-713e0c563c07" xlink:to="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_019b0280-9a8d-7d66-b8f8-e8f5d642acf6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesContinuingOperations_019b0280-9a8d-74fe-bccf-012a2c6b8fde" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_InvestissementFinancierNet_019b0280-9a8d-71b4-8ad4-da44a13a180b" xlink:href="tha-2025-12-31.xsd#tha_InvestissementFinancierNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesContinuingOperations_019b0280-9a8d-74fe-bccf-012a2c6b8fde" xlink:to="loc_tha_InvestissementFinancierNet_019b0280-9a8d-71b4-8ad4-da44a13a180b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_InvestissementNetDExploitation_019b0280-9a8d-73db-befb-048366599423" xlink:href="tha-2025-12-31.xsd#tha_InvestissementNetDExploitation"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesContinuingOperations_019b0280-9a8d-74fe-bccf-012a2c6b8fde" xlink:to="loc_tha_InvestissementNetDExploitation_019b0280-9a8d-73db-befb-048366599423" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_VersementDesContributionsDeRetraiteRegimesAPrestationsDefinies_019b0280-9a8d-706e-9fc3-be1b70fc8abc" xlink:href="tha-2025-12-31.xsd#tha_VersementDesContributionsDeRetraiteRegimesAPrestationsDefinies"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_VersementDesContributionsDeRetraiteAuTitreDeLaReductionDesDeficitsDeRetraiteEtDeLAssuranceDesEngagementsDeRetraiteAuRoyaumeUni_019b0280-9a8d-790d-ba03-fa01df939321" xlink:href="tha-2025-12-31.xsd#tha_VersementDesContributionsDeRetraiteAuTitreDeLaReductionDesDeficitsDeRetraiteEtDeLAssuranceDesEngagementsDeRetraiteAuRoyaumeUni"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_VersementDesContributionsDeRetraiteRegimesAPrestationsDefinies_019b0280-9a8d-706e-9fc3-be1b70fc8abc" xlink:to="loc_tha_VersementDesContributionsDeRetraiteAuTitreDeLaReductionDesDeficitsDeRetraiteEtDeLAssuranceDesEngagementsDeRetraiteAuRoyaumeUni_019b0280-9a8d-790d-ba03-fa01df939321" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_VersementDesContributionsDeRetraiteAuTitreDesPrestationsContributionsRecurrentes_019b0280-9a8d-7746-b5b5-713d58e2f8b2" xlink:href="tha-2025-12-31.xsd#tha_VersementDesContributionsDeRetraiteAuTitreDesPrestationsContributionsRecurrentes"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_tha_VersementDesContributionsDeRetraiteRegimesAPrestationsDefinies_019b0280-9a8d-706e-9fc3-be1b70fc8abc" xlink:to="loc_tha_VersementDesContributionsDeRetraiteAuTitreDesPrestationsContributionsRecurrentes_019b0280-9a8d-7746-b5b5-713d58e2f8b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations_019b0280-9a8d-78a2-8db2-658a0f6e76ff" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_019b0280-9a8d-7cca-9c68-48a18d1606cf" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations_019b0280-9a8d-78a2-8db2-658a0f6e76ff" xlink:to="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_019b0280-9a8d-7cca-9c68-48a18d1606cf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_019b0280-9a8d-734c-9332-69ccdda8d9d0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations_019b0280-9a8d-78a2-8db2-658a0f6e76ff" xlink:to="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_019b0280-9a8d-734c-9332-69ccdda8d9d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities_019b0280-9a8d-79c2-9315-3d15af285ffd" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations_019b0280-9a8d-78a2-8db2-658a0f6e76ff" xlink:to="loc_ifrs-full_DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities_019b0280-9a8d-79c2-9315-3d15af285ffd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities_019b0280-9a8d-7e3e-a562-ff6eedd22d2c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations_019b0280-9a8d-78a2-8db2-658a0f6e76ff" xlink:to="loc_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities_019b0280-9a8d-7e3e-a562-ff6eedd22d2c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_019b0280-9a8d-793f-bdad-e61f2693da0c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesContinuingOperations_019b0280-9a8d-78a2-8db2-658a0f6e76ff" xlink:to="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_019b0280-9a8d-793f-bdad-e61f2693da0c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_PerteProfitSurCessionsEtAutres_019b0280-9a8d-7600-a61d-dbcff2e66e38" xlink:href="tha-2025-12-31.xsd#tha_PerteProfitSurCessionsEtAutres"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:to="loc_tha_PerteProfitSurCessionsEtAutres_019b0280-9a8d-7600-a61d-dbcff2e66e38" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherAdjustmentsToReconcileProfitLoss_019b0280-9a8d-78e7-8b2b-844dab595512" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherAdjustmentsToReconcileProfitLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:to="loc_ifrs-full_OtherAdjustmentsToReconcileProfitLoss_019b0280-9a8d-78e7-8b2b-844dab595512" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_019b0280-9a8d-7052-bec9-4978bcc1f913" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_019b0280-9a8d-7052-bec9-4978bcc1f913" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_InteretsFinanciersNet_019b0280-9a8d-7cf5-9c15-97cf8a694ce7" xlink:href="tha-2025-12-31.xsd#tha_InteretsFinanciersNet"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:to="loc_tha_InteretsFinanciersNet_019b0280-9a8d-7cf5-9c15-97cf8a694ce7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncomeTaxExpense_019b0280-9a8d-798f-ade6-68aefdabb2f8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncomeTaxExpense"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:to="loc_ifrs-full_AdjustmentsForIncomeTaxExpense_019b0280-9a8d-798f-ade6-68aefdabb2f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsReceivedClassifiedAsOperatingActivities_019b0280-9a8d-73be-9c92-a7326a07509c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsReceivedClassifiedAsOperatingActivities"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:to="loc_ifrs-full_DividendsReceivedClassifiedAsOperatingActivities_019b0280-9a8d-73be-9c92-a7326a07509c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod_019b0280-9a8d-72d5-9d62-f30c28f4dc11" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:to="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod_019b0280-9a8d-72d5-9d62-f30c28f4dc11" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019b0280-9a8d-7367-a3ec-25eaa711fc5c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:to="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019b0280-9a8d-7367-a3ec-25eaa711fc5c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_DotationsNettesAuxProvisionsPourRestructuration_019b0280-9a8d-76e0-b47d-c9d888ec0750" xlink:href="tha-2025-12-31.xsd#tha_DotationsNettesAuxProvisionsPourRestructuration"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:to="loc_tha_DotationsNettesAuxProvisionsPourRestructuration_019b0280-9a8d-76e0-b47d-c9d888ec0750" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromContinuingOperations_019b0280-9a8d-730d-b02f-3cb56f3d7a7a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromContinuingOperations"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:to="loc_ifrs-full_ProfitLossFromContinuingOperations_019b0280-9a8d-730d-b02f-3cb56f3d7a7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_019b0280-9a8d-71cd-9499-69c4ffb5659e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_019b0280-9a8d-7dfd-bedb-3d0059a5fb51" xlink:to="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_019b0280-9a8d-71cd-9499-69c4ffb5659e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.thalesgroup.com/role/tatdesfluxdetrsoreriemthodeindirecteStatement_1" xlink:type="simple" xlink:href="tha-2025-12-31.xsd#tatdesfluxdetrsoreriemthodeindirecteStatement_1"/>
  <link:calculationLink xlink:role="http://www.thalesgroup.com/role/tatdesfluxdetrsoreriemthodeindirecteStatement_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019b0280-9a8d-7aa7-9f3a-15150d8b3060" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_AugmentationDiminutionDeLaTresorerieEtDesEquivalentsDeTresorerieActivitesPoursuivies_019b0280-9a8d-75fd-8e62-924854082862" xlink:href="tha-2025-12-31.xsd#tha_AugmentationDiminutionDeLaTresorerieEtDesEquivalentsDeTresorerieActivitesPoursuivies"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019b0280-9a8d-7aa7-9f3a-15150d8b3060" xlink:to="loc_tha_AugmentationDiminutionDeLaTresorerieEtDesEquivalentsDeTresorerieActivitesPoursuivies_019b0280-9a8d-75fd-8e62-924854082862" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_tha_AugmentationDiminutionDeLaTresorerieEtDesEquivalentsDeTresorerieActivitesAbandonneesApresEffetDesVariationsDeChangeSurLaTresorerieEtLesEquivalentsDeTresorerie_019b0280-9a8d-7125-ae5f-3f367fc42272" xlink:href="tha-2025-12-31.xsd#tha_AugmentationDiminutionDeLaTresorerieEtDesEquivalentsDeTresorerieActivitesAbandonneesApresEffetDesVariationsDeChangeSurLaTresorerieEtLesEquivalentsDeTresorerie"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019b0280-9a8d-7aa7-9f3a-15150d8b3060" xlink:to="loc_tha_AugmentationDiminutionDeLaTresorerieEtDesEquivalentsDeTresorerieActivitesAbandonneesApresEffetDesVariationsDeChangeSurLaTresorerieEtLesEquivalentsDeTresorerie_019b0280-9a8d-7125-ae5f-3f367fc42272" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
