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LiftMax
Plug in a set you've completed (weight × reps) — see your estimated 1RM and a training-percentage table.
Strength: 80–95% of 1RM, 1–6 reps. Hypertrophy: 65–80%, 6–12 reps. Endurance: below 65%, 12+ reps. Most strength programs cycle through these.
Daily energy expenditure with personalised macro splits.
OpenBody mass index with healthy-range guidance.
OpenUS Navy circumference method for body fat percentage.
OpenDaily hydration target based on weight, activity, and climate.
OpenEstimated 1 rep max
262.5 lb
| % of 1RM | Weight (lb) | Typical reps |
|---|---|---|
| 100% | 262.5 | 1 |
| 95% | 249.4 | 2 |
| 90% | 236.3 | 3–4 |
| 85% | 223.1 | 5–6 |
| 80% | 210 | 7–8 |
| 75% | 196.9 | 9–10 |
| 70% | 183.8 | 10–12 |
| 65% | 170.6 | 12–15 |
| 60% | 157.5 | 15+ |
| 55% | 144.4 | 15+ |
| 50% | 131.3 | 15+ |
What you entered
Epley formula: weight × (1 + reps ÷ 30)
225 × (1 + 5 ÷ 30)= 262.5 lbResult
Estimated 1 rep max: 262.5 lb
Lifting 225 lb for 5 reps suggests a one-rep max around 262.5 lb — the Epley formula is an estimate, most accurate in the 2-10 rep range, and can drift for very high or very low rep counts.