One Rep Max

What is One Rep Max (1RM)?

Your 1RM is the maximum amount of weight you can lift for a single repetition of a given exercise with proper form. It’s a foundational strength benchmark used to measure progress, personalize training programs, and ensure safe, effective workouts.

This calculator estimates your 1RM based on the weight you lift and the number of reps you can perform. It also breaks down your performance into percentage ranges, helping you understand how much to lift for endurance, hypertrophy, or strength goals. At Folz Fitness and Wellness, we use tools like this to create training plans that meet you where you are, and move you toward your goals.