Rpe Calculator
Calculate your Rate of Perceived Exertion (RPE) based on heart rate and activity duration. Useful for monitoring exercise intensity.
Published by:
isCalculator Editorial Team
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How to Use the RPE Calculator
This calculator estimates your Rate of Perceived Exertion (RPE) on a 1–10 scale based on your heart rate, age, resting heart rate, and exercise duration.
- Enter your Heart Rate (bpm) – Your current or average heart rate during exercise (30–250 bpm).
- Enter your Age – Used to estimate your maximum heart rate (1–120 years).
- Enter your Resting Heart Rate (bpm) – Your heart rate at complete rest (30–120 bpm).
- Enter Duration (minutes) – How long you exercised (1–600 minutes).
- Click "Calculate RPE" – Your RPE score (1–10) and category (Very Light to Maximum Effort) will appear below.
Tips:
- All values are required and must be within the specified ranges.
- The formula uses the Tanaka method for max heart rate:
208 – 0.7 × age. - Longer durations slightly increase the RPE adjustment (up to 90+ minutes).
- Use this to gauge workout intensity and track progress over time.
Previous Results
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Frequently Asked Questions
RPE stands for Rate of Perceived Exertion, a scale from 1 to 10 that measures how hard you feel your body is working during exercise.
RPE is estimated using heart rate data: (Current HR - Resting HR) / (Max HR - Resting HR) * 10, with adjustments for duration. Max HR is estimated as 208 - 0.7 * age.
Moderate intensity corresponds to RPE 5-6, vigorous to 7-8. Always consult a professional for personalized advice.
