One-Rep Max

Calcule Your One-Rep Max (1RM)

Use the calculator below for any lift to estimate maximum One-Rep based on the amount of weight you can lift in a given motion, and the number of cleansing repetitions can be achieved before muscle failure.

Calculate
Metric Imperial
Your One-Rep Max is
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These calculations are based on averages

Why do you need to calculate your 1RM?

Strength trainers have established programs with percentages based on their 1RM because they do not know their actual strength level, but they know what percentages they want the use to be in relation to their maximum single repetition. The calculator gives you all the corresponding charges, which are made simply by multiplying the percentage in your 1RM.

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