Find your one-rep maximum using 3 proven formulas. Enter the weight you lifted and how many reps you completed.
| % of 1RM | Reps | Goal |
|---|---|---|
| 90–100% | 1–3 | Max strength |
| 75–85% | 4–6 | Strength & power |
| 65–75% | 8–12 | Hypertrophy |
| 50–65% | 15+ | Endurance |
Your one-rep maximum (1RM) is the maximum weight you can lift for a single full repetition. It is the gold standard for measuring absolute strength and forms the basis of all percentage-based strength programming used in powerlifting and sports conditioning.
90–100% of 1RM builds maximal strength (1–3 reps). 75–85% develops strength and power (4–6 reps). 65–75% optimizes hypertrophy (8–12 reps). Use the percentage table to find the right weight for any training goal.