Max Heart Rate for a 40-Year-Old Male
The Fox formula estimates maximum heart rate at 180 bpm for a 40-year-old male.
How to use this tool
- Enter age and sex in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your fox formula (220 − age) and the full breakdown beneath it.
See and compare max heart rate estimates from multiple formulas for a 40-year-old male.
Frequently asked questions
- Which max heart rate formula is most accurate?
- No formula is accurate for every individual — all have a standard deviation of roughly ±10–12 bpm. The Tanaka formula is considered more accurate than 220−age for older adults. Laboratory testing (maximal exercise test) gives the true value.
- Why does max HR matter for training?
- MHR is used to set training zone boundaries. If your estimated MHR is 10 bpm off, all your zones shift accordingly — which is why resting-based formulas are approximate guides rather than precise prescriptions.