Calculate training heart rate zones and maximum heart rate based on age.
The heart rate zone calculator calculates training zones as percentages of maximum heart rate. Different zones develop different attributes: the aerobic zone (60–70%) burns fat, while the anaerobic zone (80–90%) improves speed.
The calculator is completely free, works directly in the browser, and does not store personal data. All calculators on this site are based on up-to-date information.
Maximum heart rate (estimate) = 220 − age. Zones: Z1 50–60%, Z2 60–70%, Z3 70–80%, Z4 80–90%, Z5 90–100%.
Enter your measurements into the calculator fields and press the calculate button – the result will be displayed immediately. You can try different values to compare various scenarios.
35 years old, HRmax = 185 bpm. Z2 (aerobic) = 111–130 bpm. Z4 (interval) = 148–167 bpm.
The result is an estimate – for accurate clinical measurements, consult a healthcare professional.
The calculator is suitable for self-directed health monitoring, training planning, and general health literacy. Tracking values over time provides valuable information about changes in the body.
Remember that a single measurement result does not tell the whole story – what matters more is the direction and trend over multiple measurement periods.
Calculate training heart rate zones and maximum heart rate based on age. Fill in the requested information in the form, and the heart rate zone calculator will show the result instantly.
Yes, the heart rate zone calculator is completely free and does not require registration. All FiksuLaskuri health calculators are free of charge.
No. The calculations are done entirely in your browser and the data you enter is not sent or stored on the server.
No. The heart rate zone calculator is a rough guide, not a medical diagnosis. For health-related decisions, it is advisable to consult a healthcare professional.
Yes – at the bottom of the page, you can see other calculators related to the same topic that may also interest you.