Max heart rate

Classic is 220 − age. Tanaka is 208 − 0.7 × age. Both miss trained outliers by 10–20 bpm. Zones on the heart-rate page use whatever max you believe.

Age

Tanaka

184

220 minus age

185

A field test or a watch max beats both formulas.

Recent on this tool

This list is the copy in this browser. Click a result to reopen those fields. The server copy sits behind the site owner's PIN.

No results yet. Use a calculator — the first reading appears here.

An educational estimate. Not medical, tax or credit advice.

Karvonen zones from age and resting heart rate. Max HR is 220 minus age.

A VO2 max sketch from the metres you cover in twelve minutes.

From distance and finish time: pace per kilometre and average speed.

Basal metabolic rate from Mifflin–St Jeor, then a TDEE estimate from activity.

Split a daily calorie target into grams of protein, carbohydrate and fat.

Weeks to a target weight from a daily surplus or deficit, at 7700 kcal per kilogram.