Heart Rate Zone Calculator

Estimate heart rate training zones using a simple max HR estimate. Informational only.

Calculator

Estimate heart rate zones using a simple max HR estimate (220 − age). Informational only.

Age

Resting HR (optional)

Estimated max HR

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Zone 2 (60–70%)

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Zone 3 (70–80%)

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Zone 4 (80–90%)

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Heart rate zones

Heart rate zones are often used to guide training intensity. This calculator uses a simple max heart rate estimate (220 − age). Some people may prefer more personalized testing. Use this as a starting point.

FAQ

Is max HR = 220 − age accurate?

It’s a rough estimate. Individual max HR can vary significantly.

What is Zone 2?

Zone 2 is often described as an easy, sustainable effort for aerobic base work.