One Rep Max Calculator

Fitness & Health

Estimate your one-repetition maximum lift from weight lifted and repetitions completed.

Input Parameters

Adjust parameters to instantly compute metrics.

kg
reps
1 reps30 reps

Computed Results

Instant
Estimated 1-Rep Max
116.7 kg

Computed instantaneously in your browser with verified mathematical precision.

Frequently asked questions

Common Questions about One Rep Max

How does the One Rep Max determine results?
The One Rep Max relies on peer-reviewed physiological formulas and established medical equations to calculate your personal metrics accurately based on your individual inputs.
Should I use these results as clinical medical advice?
Our One Rep Max provides reliable health and wellness estimates for fitness tracking and educational planning. For diagnosis, clinical treatment plans, or severe dietary restrictions, always consult a licensed healthcare professional.
Are my personal health measurements private?
Yes. All metrics and inputs (such as weight, height, or age) are processed strictly in your local browser and are never saved, stored, or transmitted to any third party.
How frequently should I recalculate my metrics?
We recommend recalculating whenever your body weight, activity level, training regimen, or wellness goals shift to maintain accurate targets.

Privacy & cookies

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