Calculate one rep max instantly with our free One Rep Max Calculator. Trusted formulas, instant results, no sign-up required.
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This calculator uses the Epley formula — Weight × (1 + Reps ÷ 30) — one of the most common formulas for estimating a one-rep max from a lighter set taken to or near failure.
Calculate one rep max instantly with our free One Rep Max Calculator. Trusted formulas, instant results, no sign-up required.
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