Free · Health · Fitness Performance

Target Heart Rate Calculator

Estimate maximum heart rate and training zones with both percent-maximum and Karvonen heart-rate-reserve methods.

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Calculator inputs

Enter your values

Result

Your calculation

Estimated maximum
184 bpm
Tanaka equation
Light zone, 50% to 60%
124 to 136 bpm
Moderate zone, 60% to 70%
136 to 148 bpm
Vigorous zone, 70% to 85%
148 to 166 bpm
Heart-rate reserve
119 bpm

Medications and health conditions can change heart-rate response. Seek clinical guidance when appropriate.

How to use this calculator

  1. Enter current measurements as accurately as practical.
  2. Calculate to see the estimate, range, and method details.
  3. Use the result as context, and discuss health decisions with a qualified clinician.

Use the result with context

Health results are educational estimates, not a diagnosis or treatment recommendation. A qualified clinician can interpret measurements in the context of your health.