One Rep Max Calculator
Calculate your one-rep max (1RM) from the weight and reps you can perform. Uses Epley, Brzycki, and Lombardi formulas.
Weight Unit
Lift Details
Formulas are most accurate for 2-12 reps.
Calculate your one-rep max (1RM) from the weight and reps you can perform. Uses Epley, Brzycki, and Lombardi formulas.
Formulas are most accurate for 2-12 reps.