A distribution of metallicities, [Fe/H], for stars considered in the FUV–age calibration. Of the collected stars, 76% with [Fe/H] measured fall within a solar-like range of ﹩-0.2\leqslant [\mathrm{Fe}/{\rm{H}}]\leqslant 0.2﹩. However, 17 stars used in this work do not have a metallicity estimate.