One-Rep Max Calculator

A 1-rep maximum is a weight in a specific exercise that you can only do for a single repetition. A 1-rep max calculator is a safe way to estimate your 1-rep max so that you can follow a training program that prescribes exercises as a percentages of your 1-rep max or just to give yourself a rough idea of what you are capable of lifting without having to risk potential injury when attempting a 1-rep max, especially if you are a novice lifter. Use the below calculator to estimate your 1-rep max!

**Please note that this calculator provides an estimation of your 1-rep maximum and in no way guarantees that you are physically capable of performing an exercise with this amount of weight for a single repetition**

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