๐Ÿ’ช One Rep Max Calculator

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Estimate your one-rep max from weight and reps using Epley, Brzycki, and Lander formulas. | No registration ยท Data never leaves your browser

Zero dependencies ยท Works offline

๐Ÿ’ช 1RM Calculator

๐Ÿ“– Formulas Used

This calculator uses the following formulas:

Updated: 2026-07-25

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๐Ÿ’ช One Rep Max Calculator | No Signup ยท Data never leaves your device

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