Strength
Training calculators for runners, cyclists, swimmers and lifters — validated formulas from sports science literature.
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1RM Calculator
Estimate your one-rep max from a submaximal set using the Epley, Brzycki, Lombardi and Mayhew formulas, with 90/80/70% training-load percentages.
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Wilks Calculator
Calculate your Wilks score to compare powerlifting totals fairly across bodyweights and sexes, using the original Wilks coefficient formula.
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DOTS Calculator
Calculate your DOTS score, the bodyweight-adjusted powerlifting formula that replaced Wilks as USA Powerlifting's official scoring system.