Max Heart Rate Calculator
Compare maximum heart-rate estimates from age-based formulas.
How this works
Compares Tanaka (208 - 0.7 x age) with the older Fox estimate (220 - age).
Medical disclaimer
Educational tool only — not medical advice. Consult a qualified provider.
Frequently asked questions
What does the Max Heart Rate Calculator estimate?+
It estimates age-predicted maximum heart rate from age. The result is a planning estimate, not a diagnosis or personal medical advice.
How accurate is this max heart rate result?+
Accuracy depends on the inputs and the limits of the formula. Use the result as a reference point and compare it with real-world outcomes over time.
Can I share my result?+
Yes. Change the inputs, use the copy-link button, and the current values are preserved in the URL for reopening or sharing.
Will my last input be remembered?+
Yes. The calculator saves the latest inputs in this browser so a reload can restore the most recent values.
Should I use this for medical decisions?+
No. These calculators are educational tools. Talk with a qualified clinician before making health, pregnancy, nutrition, or training decisions.