We present the calibration between the dust continuum luminosity and interstellar gas content obtained from the Valpara\'{ i}so ALMA Line Emission Survey (VALES) sample of 67 main-sequence star-forming galaxies at 0.02<$z$<0.35. We use CO(1-0) observations from the Atacama Large Millimetre/submillimetre Array (ALMA) to trace the molecular gas mass, $M_{ \mathrm{ H}_{ 2}}$, and estimate the rest-frame monochromatic luminosity at 850 $\mu$m, $L_{ \nu_{ 850}}$, by extrapolating the dust continuum from MAGPHYS modelling of the far-ultraviolet to submillimetre spectral energy distribution sampled by the Galaxy And Mass Assembly (GAMA) survey. Adopting $\alpha_{ \rm CO}$ = 6.5 (K km s$^{ -1}$ pc$^{ 2}$)$^{ -1}$, the average ratio of $L_{ \nu_{ 850}}/M_{ \mathrm{ H}_{ 2}}$ = (6.4$\pm$1.4)$\times10^{ 19}$ erg s$^{ -1}$ Hz$^{ -1}$ $\mathrm{ M}_{ \odot}^{ -1}$, in excellent agreement with literature values. We obtain a linear fit of $\log_{ 10}$ ($M_{ \mathrm{ H}_{ 2}}/\mathrm{ M}_{ \odot}$) = (0.92$\pm$0.02) $\log_{ 10}$ ($L_{ \nu_{ 850}}$/erg s$^{ -1}$ Hz$^{ -1}$)-(17.31$\pm$0.59). We provide relations between $L_{ \nu_{ 850}}$, $M_{ \mathrm{ H}_{ 2}}$ and $M_{ \mathrm{ ISM}}$ when combining the VALES and literature samples, and adopting a Galactic $\alpha_{ \rm CO}$ value.
Categories: astro-ph.GA