A top quark mass measurement is performed using $35.9{,\text {fb}^{-1}} $ of LHC proton–proton collision data collected with the CMS detector at $\sqrt{s}=13,\text {TeV} $ . The measurement uses the ${\mathrm {t}\overline{\mathrm {t}}}$ all-jets final state. A kinematic fit is performed to reconstruct the decay of the ${\mathrm {t}\overline{\mathrm {t}}}$  system and suppress the multijet background. Using the ideogram method, the top quark mass ( $m_{\mathrm {t}}$ ) is determined, simultaneously constraining an additional jet energy scale factor ( $\text {JSF}$ ). The resulting value of $m_{\mathrm {t}} =172.34\pm 0.20,\text {(stat+JSF)} \pm 0.70,\text {(syst)} ,\text {GeV} $ is in good agreement with previous measurements. In addition, a combined measurement that uses the ${\mathrm {t}\overline{\mathrm {t}}}$ lepton+jets and all-jets final states is presented, using the same mass extraction method, and provides an $m_{\mathrm {t}}$ measurement of $172.26\pm 0.07,\text {(stat+JSF)} \pm 0.61,\text {(syst)} ,\text {GeV} $ . This is the first combined $m_{\mathrm {t}}$ extraction from the lepton+jets and all-jets channels through a single likelihood function.