Heart Rate Calculator
Calculate maximum heart rate and personalised training zones.
Your details
How the heart rate calculator works
The Karvonen method uses heart rate reserve, which personalises zones far better than a plain percentage of max.
Formula
HRmax = 220 − age • zone = resting + (HRmax − resting) × intensity
Worked example
At 30 with a resting rate of 62, max is 190 bpm and the fat-burning zone is about 139–152 bpm.
Frequently asked questions
How do I measure resting heart rate?
Take your pulse for 60 seconds first thing in the morning, before getting out of bed.
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