Bolometric light curve for SN 2023ixf calculated from the integration of the observed flux plus black-body extrapolations (thick grey line, referred to as “SED integration”) in comparison with those calculated from calibrations of bolometric corrections versus colours found in the literature: Martinez et al. (2022a; top-left panel), Lyman et al. (2014; top-right panel), Bersten & Hamuy (2009), Pejcha & Prieto (2015), and Pritchard et al. (2014; bottom-left panel). The bottom-right panel shows bolometric light curves using the calibrations by Martinez et al. (2022a) when larger validity ranges of colours are allowed.