Health
Use this heart rate zone calculator to calculate calculate heart rate training zones from age and resting heart rate.
Calculator
Choose what you want to calculate, enter realistic values, adjust units where shown, and use the scenario section for repeated-use planning.
This calculator applies the formula Karvonen zone = resting HR + intensity x heart rate reserve. Enter each value with the matching unit, and AZCalculate updates the result instantly.
Current
185 bpm
Projected
2,220
Adjusted
203.5
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Karvonen zone = resting HR + intensity x heart rate reserve
This calculator applies the formula Karvonen zone = resting HR + intensity x heart rate reserve. Enter each value with the matching unit, and AZCalculate updates the result instantly.
Example calculation
The calculator above shows the computed answer instantly from these example values.
Calculator guide
Calculate heart rate training zones from age and resting heart rate. This page includes an interactive calculator, concise formula notes, worked examples, FAQs, related calculators, and practical guidance you can revisit whenever needed.
We work hard to keep every calculator accurate and useful. If you notice a calculation error, missing option, or unclear explanation, please let us know so we can review and correct it promptly.
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Most active date
2026-06-05
FAQ
It uses Karvonen zone = resting HR + intensity x heart rate reserve and calculates the result from the values you enter.
Yes. AZCalculate calculator pages include copy, share, and print actions.
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