Heart & training zones calculators
Heart & training zones calculators — 2 tools, each showing the formula it uses, the source that published it, and the date that source was last checked.
Max heart rate calculator
A maximum heart rate calculator estimates the fastest your heart beats at all-out effort. This one runs three published equations at once: Fox 220 minus age, Tanaka 208 minus 0.7 times age, and Gulati 206 minus 0.88 times age for women. It shows the gap between them and states that 220 minus age was never a validated regression.
PopularHeart rate zone calculator
A heart rate zone calculator turns your age into five training bands: 50 to 60 percent of maximum through 90 to 100 percent. Enter a resting heart rate and it also computes Karvonen zones from heart rate reserve, which sit higher, and prints the intensity classification ACSM actually published beside the five zone convention.
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