Max Heart Rate Calculator (3 Formulas)
HRmax by Fox, Tanaka and Gulati — with the spread shown, because the formulas disagree by design.
The famous 220-minus-age was never derived from a proper study — Fox sketched it from mixed data in 1971. Tanaka's meta-analysis of 18,712 subjects is the better default, and Gulati re-fitted for women from 5,437 exercise tests. All formulas carry ±10–12 bpm individual error; a field test (hard hill repeats) beats every equation.
Formula
For general information only — not medical or training advice. Estimates vary between individuals; consult a qualified professional before changing your exercise or nutrition routine.
HRmax by Fox, Tanaka and Gulati — with the spread shown, because the formulas disagree by design. The Max Heart Rate Calculator (3 Formulas) is a free, private max heart rate tool — every result computes instantly in your browser with no sign-up and no data upload.
About Max Heart Rate Calculator (3 Formulas)
The famous 220-minus-age was never derived from a proper study — Fox sketched it from mixed data in 1971. It applies Fox: 220 − age · Tanaka: 208 − 0.7×age · Gulati (F): 206 − 0.88×age. Use the Max Heart Rate Calculator (3 Formulas) to get an instant, clearly-explained result with the working shown step by step — free, private and with the source method cited.
How to use Max Heart Rate Calculator (3 Formulas)
- 1Enter your details in the Max Heart Rate Calculator (3 Formulas) input fields above.
- 2The result updates instantly with the working and reference bands shown.
- 3Adjust any value to explore how it changes the outcome — it's free and unlimited.
Why use Max Heart Rate Calculator (3 Formulas)?
- ✓Instant max heart rate result that recomputes as you type — no waiting, no page reloads
- ✓100% client-side: your health data never leaves your browser
- ✓Shows the actual formula and your numbers substituted in, so you can see exactly how the result is reached
- ✓Based on published, citable sources (Tanaka H et al., JACC 2001;37:153-6)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Max Heart Rate Calculator (3 Formulas) work?+
The famous 220-minus-age was never derived from a proper study — Fox sketched it from mixed data in 1971. The calculation uses the formula: Fox: 220 − age · Tanaka: 208 − 0.7×age · Gulati (F): 206 − 0.88×age. Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Max Heart Rate Calculator (3 Formulas) accurate, and what is it based on?+
The method is traceable to authoritative sources, including Tanaka H et al., JACC 2001;37:153-6; Gulati M et al., Circulation 2010;122:130-7. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Max Heart Rate Calculator (3 Formulas) free and private?+
Yes. It's completely free with no sign-up, and all computation happens locally in your browser, so none of your health data ever leaves your device.
Can I use this for medical decisions?+
This tool is for general fitness information only, not medical or training advice. Consult a professional before changing your routine.
What can I use the Max Heart Rate Calculator (3 Formulas) for?+
It's commonly used for max heart rate, 220 minus age, hrmax calculator. HRmax by Fox, Tanaka and Gulati — with the spread shown, because the formulas disagree by design.
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