How it works
Maximum heart rate can be estimated as 220 - age.
The Karvonen method uses heart rate reserve: HRmax - HRrest.
Moderate and vigorous zones help plan training more safely.
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Calculate effort ranges for physical activity based on age and resting heart rate.
Fill in the fields and see the result with the formula used.
Fill in the required data to see the result.
Maximum heart rate can be estimated as 220 - age.
The Karvonen method uses heart rate reserve: HRmax - HRrest.
Moderate and vigorous zones help plan training more safely.
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