Heart Rate Zone Calculator

About Heart Rate Zone Calculator

The heart-rate zone calculator estimates max heart rate and target zones using heart-rate reserve.

How to Use

The heart-rate zone calculator estimates max heart rate and target zones using heart-rate reserve. Enter the Age and Resting heart rate values and review the Estimated max heart rate, Moderate zone, and Vigorous zone outputs after you calculate.

  1. Open the calculator : Use Heart Rate Zone Calculator from the Health category.
  2. Check the inputs : Review the required values and any optional settings.
  3. Read the formula : Use the formula and notes below to understand how the result is produced.

Common Questions

What does the Heart Rate Zone Calculator estimate?

It estimates training zones from your age or heart-rate inputs.

How accurate is the result?

Treat the zones as guidance only, especially if medications or medical conditions affect your heart rate.

Inputs

  • Age
  • Resting heart rate

Outputs

  • Estimated max heart rate
  • Moderate zone
  • Vigorous zone

Formula

Max heart rate = 220 - age. Zones use resting heart rate plus a percentage of reserve.