How does the One Rep Max Calculator work?

Estimate one-repetition maximum from lifted weight and reps. The result is an estimate based on the values entered.

Is this calculator medical advice?

No. This calculator is for general education and should not replace advice from a qualified health professional.

Fitness

Estimate one-repetition maximum from lifted weight and reps.

Estimated 1RM -

Training 85% -

Training 70% -

Formula

Epley estimate: 1RM = weight * (1 + reps / 30)

These calculators provide estimates for general education and are not a substitute for professional medical advice.

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