Heart Rate Calculator

Find target heart rate zones for exercise.

Calculate Heart Rate Zones

Enter your age and choose a formula

Age

Maximum Heart Rate

Training Zones

Enter your age to see your heart rate zones.

Step-by-step Solution

Training Zone Goals

Zone 1–2: Recovery and fat burning
Zone 3: Aerobic endurance
Zone 4: Lactate threshold training
Zone 5: Maximum effort / VO₂ max

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About This Calculator

Find target heart rate zones for exercise.

Everything is worked out in your browser as you type, so your figures never leave your device.

Pro Tips

Results update as you type — change any field to see the effect immediately.

Check that every value uses the same unit before comparing results.

Use the copy button to paste the heart rate figures into a note or spreadsheet.

Nothing is sent to a server, so you can use this with private figures.