RPE Calculator RPE Calculator Estimate your 1RM, see RPE chart & back-off sets Unit Kilograms (kg) Pounds (lb) Weight Lifted Reps RPE 10 9.5 9 8.5 8 7.5 7 6.5 6 Plate Increment 0.5 1 2.5 5 Calculate RPE Chart (Weight per Reps) RPERepsEstimated Weight Back-off Sets RPERepsWeight