One Rep Max Calculator
Safely estimate your One Rep Max (1RM) using Epley, Brzycki, and Lander formulas with a 11-row workout intensity table.
Quick Summary: One Rep Max Calculator
One Rep Max (1RM) is the maximum weight you can lift for a single repetition. Safely estimate it using the Epley formula: 1RM = Weight * (1 + reps/30).