ONE REP MAX CALCULATOR
Estimate theoretical maximum load using the Epley and Brzycki equations to standardize programming intensity.
Accuracy degrades significantly beyond 10 repetitions.
Estimated 1RM (Average)
Epley Formula
Brzycki Formula
Programming Percentages (Based on Avg 1RM)
95%
2 Reps
90%
3-4 Reps
85%
5-6 Reps
80%
7-8 Reps
75%
9-10 Reps