How does RPE correlate to heart rate?

Borg RPE × 10 ≈ heart rate. An RPE of 14 corresponds to approximately 140 bpm for most adults; this relationship varies with fitness and exercise mode.

What RPE corresponds to Zone 2?

Zone 2 training corresponds to Borg RPE 10–12 (fairly light to somewhat hard) and CR10 scale 2–3. You should be able to hold a conversation easily.

Perceived Exertion RPE to % VO2 Max

Convert Borg RPE scale (6–20) or CR10 scale ratings to estimated percentage of VO2 max and heart rate equivalent for exercise prescription.

Use the full interactive calculator below, or

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Perceived Exertion RPE to % VO2 Max

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Frequently Asked Questions

How does RPE correlate to heart rate?

What RPE corresponds to Zone 2?