One Rep Max

Calculate One-Rep Max

Repetition Percentages of 1RM
Repititions Percentage of 1RM
1 100%
2 97.2%
3 94.4%
4 91.7%
5 88.9%
6 86.1%
7 83.3%
8 80.5%
9 77.7%
10 75%
11 73.2%
12 71.4%
13 69.8%
14 68.2%
15 66.7%
16 65.2%
17 63.8%
18 62.5%
19 61.2%
20 60%
21 58.8%
22 57.7%
23 56.6%
24 55.6%
25 54.6%
26 53.6%
27 52.6%
28 51.7%
29 50.9%
30 50%