Heart Rate Zone Calculator
Calculate heart rate zone with Calculator 360 using the available inputs.
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How to use this calculator
Compare heart-rate zones from percentages of maximum heart rate and the Karvonen heart-rate-reserve method. These are estimates, not a personalized exercise prescription.
Enter the values required by the available mode. The result uses those inputs and the existing calculator formulas.
Tanaka estimates maximum heart rate; Karvonen uses resting heart rate. References: Tanaka et al. (2001) ·
Frequently asked questions
What does this calculator do?
Compare heart-rate zones from percentages of maximum heart rate and the Karvonen heart-rate-reserve method. These are estimates, not a personalized exercise prescription.
Where do the values come from?
You enter the values shown in the form. The page does not retrieve live prices, rates, or personal health data.