Max Heart Rate Calculator
Estimate your maximum heart rate from age using the classic 220−age rule and the Tanaka formula.
- Tanaka formula
- 187 bpm
Formula: MHR = 220 − age (classic) | MHR = 208 − 0.7×age (Tanaka)
About Max Heart Rate Calculator
Max Heart Rate Calculator is a free online calculator that gives you an instant, accurate result as you type. Estimate your maximum heart rate from age using the classic 220−age rule and the Tanaka formula.
The calculation uses the standard formula MHR = 220 − age (classic) | MHR = 208 − 0.7×age (Tanaka) and updates live with every change to the inputs. Everything runs client-side in your browser — fast, private, and free to use as often as you like.
The Tanaka formula (208 − 0.7×age), derived from a meta-analysis of 351 studies, is generally more accurate than 220−age, especially for older adults.
Results are estimates for educational purposes and not medical advice.
Frequently Asked Questions
Is Max Heart Rate Calculator free to use?
Yes. Max Heart Rate Calculator is completely free, with no sign-up, no downloads, and no usage limits. You can use it as many times as you like on any device with a web browser.
How accurate is this calculator?
The calculator applies the standard formula (MHR = 220 − age (classic) | MHR = 208 − 0.7×age (Tanaka)) with full floating-point precision and rounds only the displayed result. For most practical purposes the results are exact.
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