Target Heart Rate Zone Calculator

Training Heart Rate Range

This calculator estimates exercise heart rate zones using age, resting heart rate, and the Karvonen heart rate reserve method.

Method: It estimates maximum heart rate as 220 minus age, subtracts resting heart rate to get heart rate reserve, then adds selected intensity percentages back to resting heart rate.

Understanding Target Heart Rate Zone

1. What This Calculator Measures

Target heart rate zones estimate pulse ranges for exercise intensity planning.

2. How the Calculation Works

The calculator estimates maximum heart rate, subtracts resting heart rate to get reserve, then applies the chosen intensity range.

3. Formula or Rule Used

target HR = resting HR + (max HR - resting HR) x intensity.

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