Calculate your one-rep max (1RM) for any lift. Your one-rep max is the max weight you can lift for a single repetition for a given exercise.

Free 1 Rep Max Calculator using Epley, Brzycki, Lombardi & Mayhew formulas. Convert 5x5, 10RM, 12RM, 15RM, RPE charts, and exercise-specific calculators.

Calculate your true one-rep max, plan volume percentages, log heavy sets, and unlock training guidance built for serious lifters.

1 day ago · Estimate your one-rep max (1RM) for any lift using proven formulas. Find your true strength and plan training loads effectively.

The One Rep Max Calculator below will give you an accurate estimate of your 1RM based on how many reps you can do of any particular weight, as well as percentages of 1RM in 5% increments.

Use this calculator to estimate your one-repetition maximum a.k.a. one rep max or 1RM, based on how many reps you can do with a given weight, while maintaining proper form. 1RM calculator …

Accurately calculate your maximum lifting potential with our easy-to-use One Rep Max (1RM) Calculator. Perfect for strength training, tracking progress, and setting clear workout goals.

Calculate your 1RM (one rep max) for bench press, squat, deadlift and more using proven formulas. Free 1RM calculator with confidence intervals, warm-up planning, and plate loading. …

A One Rep Max (1RM) Calculator estimates the maximum weight you can lift for a single repetition of any exercise, helping you train smarter, track progress, and set appropriate …

Quick Answer This calculator estimates your one-rep max (1RM) using seven proven formulas. Enter the weight you lifted and number of reps to instantly calculate your maximum strength …