Autoregulation
RPE Chart
Rate of perceived exertion connects effort to reps in reserve. Use it to adjust load when sleep, stress, warm-ups, or bar speed make fixed percentages unreliable.
Scroll table horizontally
| RPE | Reps in reserve | Use |
|---|---|---|
| 10 | 0 | Max effort. No more reps possible. |
| 9.5 | 0-1 | Maybe one more rep with perfect conditions. |
| 9 | 1 | Heavy working set with one rep in reserve. |
| 8 | 2 | Hard, repeatable strength or hypertrophy work. |
| 7 | 3 | Moderate work for volume, practice, and accumulation. |
| 6 | 4 | Light technique work or early warm-up sets. |
| 5 or below | 5+ | Warm-up, recovery, speed, or very low-fatigue work. |
How to apply RPE
RPE is most useful when you keep the lift standard consistent. A squat that changes depth or a bench that changes pause length cannot be compared cleanly, even if both sets feel like RPE 8. Start with a planned percentage, watch the warm-ups, and adjust the top set if the bar is moving much faster or slower than expected.
For strength work, most productive sets live around RPE 7-9. RPE 10 has a place in testing, but it is expensive. For hypertrophy and technique work, RPE 6-8 often gives enough stimulus without making the next session worse.