Lifting calculators, with the maths shown.
Strength training calculators, in kg and lb. Each one shows a worked result before you type anything, and the formula behind it. They use the same maths as the RIGOR app and are tested against the app's own cases.
1RM calculator: one rep max in kg or lb, with RIREstimate the most you could lift once, from a set you have already done.Warm-up sets calculator: weights and reps, kg or lbWarm-up sets from your first working weight.Barbell plate calculator: plates per side, kg and lbWhat to load on each side of the bar.