1RM Calculator
Estimate your one-rep maximum (1RM) for any lift without actually attempting a max lift. Enter the weight and number of reps you completed to see your estimated 1RM and training percentages using both the Brzycki and Epley formulas.
Inputs
Results
Estimated 1RM
212 lbs
Brzycki Formula
208 lbs
Epley Formula
216 lbs
Training Percentages
| % of 1RM | Weight (lbs) | Approx Reps |
|---|---|---|
| 100 | 212 | 1 |
| 95 | 201 | 2 |
| 90 | 191 | 3-4 |
| 85 | 180 | 5-6 |
| 80 | 170 | 7-8 |
| 75 | 159 | 9-10 |
| 70 | 148 | 11-12 |
| 65 | 138 | 13-15 |
| 60 | 127 | 16-20 |
| 50 | 106 | 20+ |