LiftPal · Training tool
One rep max calculator for your working sets
Enter the weight and reps from a heavy set. See a one-rep value and loads for 60 to 90 percent.
Estimated one rep max
The range covers Epley and Brzycki. Compare sets of the same exercise with similar technique.
Epleyabout 92.5 kgweight × (1 + reps ÷ 30)
Brzyckiabout 90 kgweight × 36 ÷ (37 − reps)
Reference loads
Derived from your set and rounded to practical weight steps.
| Share | Weight |
|---|---|
| 60 % | 55 kg |
| 70 % | 65 kg |
| 80 % | 72.5 kg |
| 90 % | 82.5 kg |
Load 85% on the bar
Load 85% on the barThe plate calculator opens with the rounded target.
What affects the estimate
The formulas assume a set close to your limit. If you had several reps left, the estimate tends to run low. Technique and range of motion affect comparisons. Results vary more at eight to ten reps. Warm up and use proper safety measures for any max attempt.
Read more: planning progressive overload