RPE Calculator
Use the RPE (Rate of Perceived Exertion) scale to plan your training weights or estimate your one-rep max.
Estimate Target Weight
Estimate Your 1RM
FAQ
RPE (Rate of Perceived Exertion) is a scale used in strength training to estimate how close a set was to failure. RPE 10 means maximum effort (failure), RPE 8 means you could have done 2 more reps.
Enter the weight you lifted, how many reps you did, and your RPE rating. The calculator estimates your one-rep max (1RM) and suggests target weights for different rep ranges.
RPE accounts for daily strength fluctuations, sleep, stress, and fatigue. It is more flexible than percentage-based programs that assume constant strength levels. Many elite programs combine both approaches.
About this test
The RPE calculator helps strength athletes estimate their one-rep max and find target weights for training. It uses the Rate of Perceived Exertion scale for autoregulated training.
How It Works
Enter the weight, reps, and RPE of a recent set. The calculator estimates your 1RM using the Epley formula adjusted for RPE. It then generates a load table for any rep range at any RPE.
RPE Scale
RPE 10 = failure, RPE 9 = 1 rep left, RPE 8 = 2 reps left, RPE 7 = 3 reps left. This subjective scale lets you autoregulate training intensity based on how you feel each session.
Tips
- Learn to rate RPE accurately — it takes practice
- Film your sets to calibrate your RPE ratings
- RPE varies day to day — that is the point of autoregulation