Rep Max Calculator
Enter the weight and reps from a set to estimate your rep max.
lbs
x
reps
Rep max results
1RM: 66.67 lbs
Equivalent weights for reps
| Repetitions | Weight (lbs) | % of 1RM |
|---|---|---|
| 1 | 66.67 | 100% |
| 2 | 62.50 | 94% |
| 3 | 60.61 | 91% |
| 5 | 57.15 | 86% |
| 6 | 55.56 | 83% |
| 8 | 52.63 | 79% |
| 10 | 50.00 | 75% |
| 12 | 47.62 | 71% |
| 15 | 44.45 | 67% |
| 20 | 40.00 | 60% |
What is 1RM?
1RM stands for one repetition maximum. It is the maximum amount of weight you can lift for a single repetition.
Your 2RM, 3RM, and higher rep max values estimate the heaviest weight you can lift for that exact number of reps.