What is maximum heart rate?

Maximum heart rate is often estimated as 220 minus age (bpm). It is a reference for defining target heart-rate zones during exercise.

What are target heart rate zones?

Target zones are ranges of heart rate (e.g. 50–70% of max for moderate exercise). They are general guides only; ask your doctor what is safe for you.

Heart Rate (Max & Target Zones)

Max heart rate (220 − age) and target zones for exercise. Reference only.

What this calculator does

This tool estimates your approximate maximum heart rate (220 minus age) and a target heart-rate range based on a percentage of that maximum. It is a general reference for exercise, not a prescription.

What your result means

The zones are rough guides for exercise intensity. They do not replace medical advice. If you have heart conditions or are new to exercise, ask your doctor what range is safe for you.

This is not medical advice. A healthcare provider should interpret results in your context.

Age (years)

Target zone low (%)

Target zone high (%)

Key terms

Max heart rate: Often estimated as 220 − age (bpm); used as a reference for target exercise intensity.
Target zone: A range of heart rate (e.g. 50–70% of max) used as a guide for exercise intensity.
bpm: Beats per minute.

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This tool is for educational and reference use only. It does not constitute medical advice. Always consult a healthcare professional for medical decisions.