Diastra A series in 4 parts
Max heart rate, explained
Every heart rate zone is a slice of one number, your max heart rate. When that number is off, every zone drawn from it is off too.
Most charts guess the max from age. The guess is right on average and can miss a single runner by a wide margin, in either direction.
This series covers the calculator, the chart by age, the formulas and where each one came from, and how to find the max your own workouts have already shown.
Max heart rate · CalculatorMax heart rate calculatorEstimate your maximum heart rate from your age with the Tanaka formula. See how far one person can be from it, and how runners find their real max.Max heart rateMax heart rate by ageA max heart rate chart for ages 18 to 75 with 220 minus age and the Tanaka formula, why max drops with age, and how far one person can differ.Max heart rateMax heart rate formulas compared, from 220 minus age to Tanaka220 minus age was drawn by eye in 1971. See the max heart rate formulas built on real studies and what each one gives at ages 30, 45 and 60.Max heart rateHow do you find your max heart rate on Apple Watch?Find your real max heart rate in the workouts your Apple Watch already saved. See where to look and how to tell a real peak from a sensor spike.