Free tool

Calculate your 1RM

Enter your best set and its @ (RPE): you'll get your estimated 1RM, your training percentages and even your competition points. Free.

RPE = effort from 1 to 10. An @8 means you had 2 reps left in reserve.

Your estimated 1RM
123.5kg
Calculated with the RPE chart.
122.5 kg100 %
117.5 kg95 %
110 kg90 %
105 kg85 %
97.5 kg80 %
92.5 kg75 %
87.5 kg70 %
80 kg65 %
If you compete, suggested attempts:
1st 112.52nd 117.53rd 122.5–125
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