RPE to 1RM Calculator
Estimate your one-rep max from a set with reps in reserve.
280lb
That set was 80.3% of your 1RM.
| Reps | RPE 10 | RPE 9 | RPE 8 | RPE 7 |
|---|---|---|---|---|
| 1 | 280 lb | 272 lb | 263 lb | 255 lb |
| 3 | 258 lb | 250 lb | 242 lb | 233 lb |
| 5 | 242 lb | 233 lb | 225 lb | 217 lb |
| 8 | 220 lb | 212 lb | 203 lb | 195 lb |
| 10 | 207 lb | 199 lb | 190 lb | 182 lb |
Based on the Reactive Training Systems RPE chart. RPE 10 means no reps left, RPE 8 means 2 reps in reserve. Estimates work best on compound lifts and within 6 reps of failure.
About
Mike Tuchscherer's RPE chart converts a load + reps + RPE (rate of perceived exertion) into a 1RM estimate. More accurate than the classic Epley formula because it accounts for how hard the set actually was.
How to use
- Enter the weight you lifted.
- Enter the reps and your RPE for that set.
- See your estimated 1RM and projected sets at common RPEs.
FAQ
What's RPE?+
Rate of Perceived Exertion. RPE 10 means failure. RPE 9 is one rep in reserve. RPE 8 is two. It scales by half-points: RPE 8.5 means probably one in reserve, maybe two.
Why is it more accurate than Epley?+
Epley assumes every set is taken to failure. RPE accounts for sets stopped short, which is how most people actually train.