Radio–SFR relations. Top panel: Hα-inferred SFRs against radio luminosity for galaxies in the RPS sample (orange data points) and other galaxies in the LOFAR HRS sample (blue data points). The orange and blue lines represent the best-fitting power-law fits and the corresponding 1σ uncertainty bands for those samples. The green, purple and brown lines are fits taken from the literature. Bottom panel: same as above but for the UV-based SFRs.