1-Rep Max (1RM) Calculator

Estimate your maximum single-repetition lift capacity and calculate training percentage breakdowns using Epley & Brzycki formulas.

Estimated 1-Rep Max (1RM)
114 kg

Percentage Reps Breakdown

Load Intensity Weight Est. Max Reps
95%108 kg~2 reps
90%103 kg~4 reps
85%97 kg~6 reps
80%91 kg~8 reps
75%86 kg~10 reps
70%80 kg~12 reps