Target HR Zone

Calculate target heart rate zones for training.

Formula & Methodology

Target zone = (max heart rate − resting heart rate) × intensity + resting heart rate, using the Karvonen method.

Worked Example

With a max of 190 and resting of 60, a 60% intensity target is about 138 bpm.

Frequently Asked Questions

What is the Karvonen method?

It calculates target heart rate using your resting heart rate, giving personalized zones rather than a simple percentage of max.

Which intensity should I use?

Moderate training is often 50–70% of heart rate reserve; vigorous is 70–85%. Start lower if you are new to exercise.

Is this medical advice?

No. Consult a provider before starting intense training, especially with health conditions.

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