Target Heart Rate Zone Calculator

Find your max heart rate and the 5 training zones for your age.

Your age:

⚠️ This is a personal log only — not medical advice, not a diagnosis. See a healthcare professional for any concern.

How to use

Enter your age to see your zones. Everything runs in your browser.

What formula is used?

Max HR ≈ 220 − age, with the standard 5-zone percentage splits.

Is this medical advice?

No — estimates only. Talk to your doctor before intense training.

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