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1RM Calculator

A one-rep max (1RM) calculator estimates the maximum weight you can lift for a single repetition of an exercise. Your 1RM can be used to understand your strength level and calculate training weights at different percentages.

Weight Enter a valid weight
Reps Enter reps between 1 and 30

Your One Rep Max is: 0 Kgs

YOUR ONE-REP MAX: 0 Kgs
95%: 0 Kgs 70%: 0 Kgs
90%: 0 Kgs 65%: 0 Kgs
85%: 0 Kgs 60%: 0 Kgs
80%: 0 Kgs 55%: 0 Kgs
75%: 0 Kgs 50%: 0 Kgs