LoadPR
1RM percentage calculator
Enter your one-rep max to see every training percentage, plus the nearest weight you can actually load with standard plates.
Download on the App Store
No cookies. No tracking. Your data stays on your device.
Why round to a loadable weight
Percentages rarely land on a weight you can load. 95% of a 140 kg max is 133 kg, but with 1.25 kg as the smallest plate the bar moves in 2.5 kg steps, so the closest load is 132.5 kg. In pounds the step is 5 lb with 2.5 lb plates.
Choosing a range
Programs written in percentages often put heavy sets above 80% of your max and volume or technique work below it. Pick the range and step that match your program: 5% for a quick overview, 2.5% for finer steps.