One-Rep Max Calculator
Estimate 1RM with Epley, Brzycki and Lombardi formulas.
116.7
Epley 1RM
112.5
Brzycki 1RM
117.5
Lombardi 1RM
Working weights (Epley)
| Reps | Weight |
|---|---|
| 1 | 112.9 |
| 2 | 109.4 |
| 3 | 106.1 |
| 4 | 103 |
| 5 | 100 |
| 6 | 97.2 |
| 8 | 92.1 |
| 10 | 87.5 |
| 12 | 83.4 |
| 15 | 77.8 |
About this tool
Enter weight and reps performed. Returns 1-rep max estimates from three common formulas plus a quick percentages table for programming.