How to use this target heart rate calculator
Enter the requested values above and select Calculate. The result updates immediately on the page, so you can change one value and compare different scenarios without leaving the calculator.
Formula and method
Example
For age 40, estimated maximum is 180 bpm; 50% to 85% is about 90 to 153 bpm.
What this calculator is useful for
Estimate exercise heart-rate zones from age using a simple percentage of estimated maximum heart rate. It is designed for quick estimates and everyday problem solving. When a calculation affects a contract, tax filing, medical decision or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
Frequently asked questions
What does the Target Heart Rate Calculator calculate?
Estimate exercise heart-rate zones from age using a simple percentage of estimated maximum heart rate.
How does the calculation work?
Estimated max heart rate = 220 − age. Target range = max heart rate × selected percentages.
Is this calculator free?
Yes. ERICH Calculators is free to use and no account is required.