Free gym calculators
No sign-up and no ads. The sums are done in your browser: what you type is not sent anywhere.
One-rep max calculator: estimate your 1RMWork out your one-rep max (1RM) from the weight and reps of a set, without lifting it. Uses the Epley formula, with RIR and a table of weights.Plate calculator: what to load on each side of the barType the total weight and it tells you which plates go on each side of the bar, using as few as possible. In kilos or pounds, with your bar and your plates.Warm-up calculator: your ramp-up setsType your working weight and get your ramp-up sets: empty bar, then 40, 60 and 80%, with reps and the weight rounded to what you can load.Calorie and macro calculatorWork out your resting metabolism, maintenance calories and a split of protein, fat and carbs for your activity level and your goal.