RPE Calculator
Estimate e1RM, intensity percentage, reps in reserve and training load from weight, reps and RPE.
Hit Calculate to see your RPE zone
Calculate to classify the set
Metrics appear after calculation
Your explanation appears here
Use consistent technique, range of motion and rest periods when comparing sessions.
Your plan appears after calculation
Test a different RPE or rep target while keeping the same estimated 1RM.
Calculate your baseline first
It converts RPE into reps in reserve, estimates total reps to failure, then uses an Epley-style estimate: e1RM = weight × (1 + reps-to-failure / 30). It is a practical coaching estimate, not a lab measurement.
RIR means reps in reserve. In this tool, RPE 10 means 0 RIR, RPE 9 means about 1 RIR, RPE 8 means about 2 RIR, and so on.
Lower RPE sets are useful for technique, warm-ups and recovery. RPE 7–8 is usually productive for repeatable training. RPE 9–10 is best used selectively because fatigue and technique breakdown rise quickly.
Results are estimates generated locally in your browser from weight, reps and perceived effort. They are for informational and training-planning purposes only, not medical advice or a guarantee of maximum strength. Stop if you feel pain, dizziness or unsafe technique, and consult a qualified coach or healthcare professional when appropriate. VisionVix accepts no liability for decisions based on this output.
