One-Rep Max Calculator

Enter the weight you lifted and how many reps you completed to estimate your 1RM across four formulas.

Units

Weight lifted Reps performed

Estimated 1RM

Formula	1RM
Epley	—
Brzycki	—
Lombardi	—
Lander	—
Average	—

Training Percentages (based on average 1RM)

% of 1RM	Weight	~Reps
95%	—	~2
90%	—	~4
85%	—	~6
80%	—	~8
75%	—	~10
70%	—	~12
65%	—	~15
60%	—	~20