1RM Calculator
Estimate your one-rep max from submaximal lifts using five proven strength formulas. Perfect for CrossFit, Olympic weightlifting, and powerlifting.
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Estimated 1RM
114.6
kg
Back Squat
Formula Breakdown
| Formula | Estimate (kg) |
|---|---|
| Brzycki | 112.5 |
| Epley | 116.7 |
| Lander | 113.7 |
| Lombardi | 117.5 |
| O'Conner | 112.5 |
| Average | 114.6 |
Training Percentages
95%
108.8 kg
90%
103.1 kg
85%
97.4 kg
80%
91.7 kg
75%
85.9 kg
70%
80.2 kg
65%
74.5 kg
60%
68.7 kg
| Percentage | Weight (kg) |
|---|---|
| 95% | 108.8 |
| 90% | 103.1 |
| 85% | 97.4 |
| 80% | 91.7 |
| 75% | 85.9 |
| 70% | 80.2 |
| 65% | 74.5 |
| 60% | 68.7 |