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Health & Fitness Tools

Heart Rate Zone Calculator

Calculate simple heart-rate zones based on age and maximum heart-rate estimate.

Evidence-aware calculator

Show age-based exercise ranges as general guidance, not a prescription

Inputs are explicit, assumptions are disclosed, and health-related outputs are framed as screening or planning estimates rather than diagnoses or prescriptions.

Result
~185 bpm estimated maximum
Moderate-intensity guide
93–130 bpm
Vigorous-intensity guide
130–157 bpm
Age
35 years

The American Heart Association describes 220 − age and these target percentages as average, general guides. Medications and heart conditions can change appropriate heart-rate targets; seek professional guidance when relevant.

Reference: American Heart Association Target Heart Rates Chart.