Work out bmr (harris benedict) instantly with clear inputs, formula shown and shareable results.
Applies the Roza and Shizgal revision of the Harris-Benedict equations and shows how the result compares with Mifflin-St Jeor.
Revised Harris-Benedict
Men: BMR = 88.362 + 13.397 x weight + 4.799 x height - 5.677 x age. Women: BMR = 447.593 + 9.247 x weight + 3.098 x height - 4.330 x age
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
It was derived from a leaner early twentieth century population, so it tends to overestimate by 5 to 15% today.
Yes. The original equations differ slightly; the 1984 Roza revision is the version used here.