- Equation
- RPE 10 = 0 RIR; % 1RM from Helms Table 2 (estimated cells besides measured anchors)
- Variables
- RPE
- Rate of perceived exertion. This chart uses integers 6–10.
- RIR
- Repetitions in reserve. RPE 10 is 0 RIR.
- % 1RM
- Estimated percent of a one-repetition maximum.
- Year
- 2016
- Authors
- Helms, E. R.; Cronin, J.; Storey, A.; Zourdos, M. C.
- Source
- Strength and Conditioning Journal, 38(4), 42–49
- Notes
- Conversion chart from Helms et al. 2016, based on mean RIR-RPE scores in Zourdos et al. 2016 (DOI 10.1519/JSC.0000000000001049). The paper treats 1×100% as measured and most other cells as estimations. Squat-specific in the source; not an absolute conversion.