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Most accurate in the range of 1–10 reps.
Estimated 1RM (Epley)
116.7kg
116.7With 100 kg for 5 reps, the Epley formula estimates your maximum at 116.7 kg and the Brzycki formula at 112.5 kg.
| Repetitions | % of 1RM | Weight |
|---|---|---|
| 1 | 100 % | 116.7 kg |
| 2 | 93.8 % | 109.4 kg |
| 3 | 90.9 % | 106.1 kg |
| 5 | 85.7 % | 100.0 kg |
| 8 | 78.9 % | 92.1 kg |
| 10 | 75 % | 87.5 kg |
| 12 | 71.4 % | 83.4 kg |
| 15 | 66.7 % | 77.8 kg |
The Epley and Brzycki formulas are statistical estimation formulas, not an actual maximum strength test. Your real 1RM also depends on the exercise, technique, daily form and experience. Only attempt a true maximal lift with correct technique and, if possible, a spotter.
One-Rep Max Calculator by Rechnerzentrale(opens in a new tab)