Calculate your one-repetition maximum and full training percentage table using 4 evidence-based formulas. Built for powerlifters, athletes, and gym enthusiasts.
⬇ Download on the App StoreOne Rep Max & Training Percentages
Choose from Epley, Brzycki, Lander, and Lombardi formulas — all based on peer-reviewed research.
Full percentage breakdown from 50% to 100% 1RM for structured programming.
Instant unit conversion between kilograms and pounds.
Supports 1 to 36 repetitions for accurate estimates across all training styles.