Target Heart Rate Calculator
Estimate an exercise heart-rate range from age and optional resting pulse.
Age-predicted maximum: 185 bpm.
How to use this calculator
- Enter age and, if known, a measured resting heart rate.
- Review the live result and use Copy result when you need to share it.
How the calculation works
The tool estimates maximum heart rate as 220 minus age and uses 50–85%; with resting pulse it applies heart-rate reserve.
Formula
The tool estimates maximum heart rate as 220 minus age and uses 50–85%; with resting pulse it applies heart-rate reserve.
Step-by-step calculation
- Enter age and, if known, a measured resting heart rate.
- The tool estimates maximum heart rate as 220 minus age and uses 50–85%; with resting pulse it applies heart-rate reserve.
- Check the displayed result, then copy it if needed.
Worked example
Age 35 with resting pulse 65 bpm gives an estimated exercise range around 125–167 bpm.
Risk guidance
Frequently asked questions
Does this tool send my inputs anywhere?
No. The interactive calculation runs in your browser and this site does not submit tool inputs to a backend.
How should I use the result?
Check that the entered units and values match your situation, especially around dates, breaks, and rounding.
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