Heart Rate Training Zones Calculator

Find your five heart rate training zones, from light warm-up to maximum effort, based on your age.

Max Heart Rate-
Zone 1 - Very Light (50-60%)-
Zone 2 - Light (60-70%)-
Zone 3 - Moderate (70-80%)-
Zone 4 - Hard (80-90%)-
Zone 5 - Maximum (90-100%)-
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What Are Heart Rate Training Zones?

Heart rate zones divide your maximum heart rate into ranges commonly used to guide training intensity - from easy recovery efforts to all-out sprints.

Formula

Max Heart Rate = 220 - Age, with each zone being a percentage range of that maximum.

How to Use This Calculator

Example

A 35-year-old has an estimated max heart rate of 185 bpm, with Zone 2 (light) falling around 111-130 bpm.

This is a general estimate using a common formula, not a personalized medical assessment. If you have a heart condition, consult a doctor before starting a new exercise program.

Frequently Asked Questions

How are heart rate training zones calculated?

Most commonly as percentage ranges of your estimated maximum heart rate (often 220 minus age), dividing effort into zones like fat-burn, aerobic, and anaerobic.

Is "220 minus age" an accurate max heart rate formula?

It's a widely used approximation but has known inaccuracy for individuals — more precise methods include lab testing or field tests, though the simple formula is a reasonable starting estimate for most people.

Why train in different heart rate zones?

Different zones target different physiological adaptations — lower zones build aerobic base and endurance, while higher zones improve speed and anaerobic capacity.

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