Heart Rate Zone Calculator

Find max heart rate and fat-burn, cardio, and peak training zones.

Calculate training heart rate zones.

How to use

  1. Enter your age or known max heart rate.
  2. View calculated heart rate zones for training.
  3. Use zone percentages to plan workouts.
  4. Adjust based on fitness level and doctor guidance.

About Heart Rate Zone Calculator

Calculate training heart rate zones.

Runs in your browser — your files and input stay on your device.

Frequently asked questions

How is max heart rate estimated?

Often age-based formulas such as 220 minus age unless you enter a measured max.

Should I train without medical clearance?

Consult a doctor before starting intense exercise if you have health conditions.

Is data stored?

No.

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