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Strength Progress Overview

Estimated 1-Rep Max:

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1-Rep Max Calculator

Estimate your maximum strength using the Epley formula

Estimated 1-Rep Max

lbs

Formula Used: Epley (1985)

1RM = Weight × (1 + Reps/30)

Most accurate for 1–10 reps. For best accuracy, use a weight you can lift for 2–5 reps with proper form. Estimates may vary by ±5–10% based on individual factors.

Your current PRs for comparison: