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Maximum Heart Rate Calculator

Estimate your maximum heart rate

Estimate maximum heart rate and general training zones from age.

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Method preview

Tanaka age-predicted maximum heart rate equation. The result is an estimate and includes its limitations.

01

What is Maximum Heart Rate?

Maximum Heart Rate (MHR) is the highest number of times your heart can beat in one minute during maximum physical exertion.

02

Heart Rate Zones

Heart rate zones are ranges of heart beats per minute where different types of training adaptations occur. Each zone serves a specific purpose in your fitness journey.

03

Using Heart Rate Zones

Training in different heart rate zones helps you achieve specific fitness goals, from fat burning to improving endurance and performance.

Method and sources

Method: Tanaka age-predicted maximum heart rate equation.

Supported population: Adults age 18 to 100 without a condition or medication that changes heart-rate response.

Assumptions:
  • Age is the only predictor used
  • Percentage zones are general training bands
Age-predicted maximal heart rate revisitedJournal of the American College of Cardiology
Reviewed 2026-07-16
Read the complete methodology

Frequently asked questions

How is the Heart rate estimate calculated?

Tanaka age-predicted maximum heart rate equation.

What are the limitations of this Heart rate estimate?

Age-based formulas can differ from measured maximum heart rate. Medication and health conditions can also alter response.