One Rep Max (1RM) Strength Calculator
One Rep Max (1RM) Strength Calculator
The One Rep Max (1RM) Calculator estimates the maximum weight you can lift for a single repetition. It’s a key strength measure for athletes and weightlifters to set training goals and track progress safely.
Your Estimated 1RM: 0 kg
How it works: The calculator uses the Epley formula to estimate 1RM from submaximal lifts. Testing your 1RM periodically helps you structure safe training loads, improve endurance, and avoid overtraining injuries.