Health & Fitness
One Rep Max (1RM) Calculator
Calculate your estimated 1-Rep Max and percentage training loads for strength exercises.
One Rep Max (1RM) Calculator
Estimates maximum single-lift capacity (1RM) across bench press, squat, and deadlift using the Brzycki and Epley equations.
Understanding One Rep Max (1RM) Calculator
Estimates maximum single-lift capacity (1RM) across bench press, squat, and deadlift using the Brzycki and Epley equations. All calculations are executed securely within your browser for real-time accuracy and complete data privacy.
Frequently Asked Questions About One Rep Max (1RM) Calculator
1RM = Weight / (1.0278 - (0.0278 * Reps)). It works most accurately when reps performed are 10 or fewer.