One Rep Max Calculator
Worked example result
| 1RM — Epley | 116.7 kg |
| 1RM — Brzycki | 112.5 kg |
| 1RM — average estimate | 114.6 kg |
Lifting 100 kg for 5 reps gives an Epley estimate of 116.7 kg and a Brzycki estimate of 112.5 kg — an average 1RM of about 114.6 kg.
Epley: 1RM = w × (1 + reps/30) · Brzycki: 1RM = w × 36 / (37 − reps) · Powered by CalcHub — One Rep Max Calculator