๐๏ธ One Rep Max (1RM) Calculator
Estimate your max weight for squat, bench, deadlift using the Epley formula
About 1RM Calculator
How to use the 1RM Calculator?
Select an exercise, enter the weight and reps you can perform, then click calculate to estimate your 1RM. Supports Epley, Brzycki, Lombardi, and O'Conner formulas with training weight percentages for different rep ranges.
Is 1RM calculation accurate?
1RM formulas provide estimates and are most accurate for 5 reps or fewer. The Epley formula is the most widely used in fitness. For safety, always test 1RM with a spotter.