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Heart Rate Zones Calculator

A heart rate zones helps you calculate heart rate zones values accurately and instantly.

Calculate your personalized heart rate training zones using the Karvonen formula.

Calculator

Formula (Karvonen)

Max HR = 220 − age
Heart Rate Reserve (HRR) = Max HR − Resting HR
Target HR = (HRR × intensity%) + Resting HR

The Karvonen method personalizes training zones by accounting for your resting heart rate.

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Frequently Asked Questions

How does the Heart Rate Zones Calculator work?

The Heart Rate Zones Calculator uses standard formulas to calculate your results. Enter your values in the input fields and click Calculate to see instant results.

Is the Heart Rate Zones Calculator free?

Yes, the Heart Rate Zones Calculator on CalcMaster is completely free to use with no signup required. Your data stays in your browser and is never sent to any server.

How accurate is the Heart Rate Zones Calculator?

The Heart Rate Zones Calculator uses verified formulas and provides accurate estimates for informational purposes. Results are calculated instantly in your browser.