Heart Rate Zone Calculator
Calculate your training zones from maximum and resting heart rate.
To calculate heart rate training zones, enter your age and resting heart rate. Zones are derived with the Karvonen heart-rate-reserve method, which accounts for your fitness level rather than using a flat percentage of maximum heart rate.
Runs in your browser- Privacy
- Runs entirely in your browser — nothing is uploaded
- Cost
- Free, unlimited, no sign-up
Frequently asked questions
Which max heart rate formula is better?
How to use the heart rate zone calculator
- 1Set the age.
- 2Set the resting heart rate.
- 3Choose the max hr formula.
- 4The result appears immediately — copy or download it.
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Put the working heart rate zone calculator on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.
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