Use the calculator below to predict your one-repetition maximum (1RM) for any lifts you do in your strength training program. When you press the calculate button, the calculator will also predict your strength levels as a percentage of your 1RM.
The weight must be between 0.5 – 500 and the number of reps must be between 1 – 50.
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Use the code FITFREAK15 to get 15% off storewide at ProSource.
Get a discount on:
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*Can be used once per customer
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