Max Heart Rate Calculator
Estimate your maximum heart rate by age using the Tanaka and Fox 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
How do you calculate maximum heart rate?+
The most common estimate is the Fox formula: 220 minus your age. The newer Tanaka formula, 208 minus 0.7 times your age, is more accurate for older adults. For example, at age 60 the Fox formula gives 160 bpm while Tanaka gives 166 bpm. These are population estimates, not a measured maximum, and are not medical advice.
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.