Heart Rate Zone Calculator
Find your maximum heart rate and the five common training zones from your age.
How zones are estimated
Maximum HR โ 220 โ age. With a resting HR we use the Karvonen method: Target = (HRmax โ HRrest) ร intensity + HRrest. Without it, zones are simple % of HRmax.
Frequently Asked Questions
Is the Heart Rate Zone Calculator free to use?
Yes, the Heart Rate Zone Calculator is 100% free to use. There are no subscriptions, no sign-ups, and no hidden fees.
Is my data safe when using the Heart Rate Zone Calculator?
Absolutely. All calculations performed by the Heart Rate Zone Calculator happen locally in your web browser. We do not store, track, or transmit your inputs or results to any server.
How accurate is the Heart Rate Zone Calculator?
Our Heart Rate Zone Calculator uses industry-standard formulas and methodology. You can view the exact formula and calculation logic used in the methodology section above to verify the math yourself.
Can I use the Heart Rate Zone Calculator on my mobile phone?
Yes! The Heart Rate Zone Calculator is fully responsive and works seamlessly on all devices including smartphones, tablets, and desktop computers.