Online Calculators > Health Calculators > One Rep Max Calculator

One Rep Max Calculator

One Rep Max Calculator to calculate the one-rep max for weight lift. The one-rep max is the maximum weight you can lift for a single repetition in your exercise. 1rm Calculator is calculated based on the weight you lift and the number of repetitions.

1rm Calculator
Weight lifted:
Repetitions
Your One Rep Max is:

1 Rep Max Calculator

Following is the 1 rep max calculator table that shows repetitions of 1RM, percentage of 1RM and weight lifted.

Repetitions of 1RM	Percentage of 1RM	Weight lifted
1	100%
2	97%
3	94%
4	92%
5	89%
6	86%
7	83%
8	81%
9	78%
10	75%
11	73%
12	71%
13	70%
14	68%
15	67%
16	65%
17	64%
18	63%
19	61%
20	60%
21	59%
22	58%
23	57%
24	56%
25	55%
26	54%
27	53%
28	52%
29	51%
30	50%

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