BMR Calculator
Calories your body burns at rest.
Private by design — everything is calculated on your device, nothing is storedTry: Weight=70, Height=170, Age=30, Sex=male → 70 kg, 170 cm, 30, male, 1,618 kcal
How to use
Basal metabolic rate is the energy your body uses for basic functions — breathing, circulation, cell repair — with no activity.
Formula
BMR = 10·weight + 6.25·height − 5·age + s (s = +5 male, −161 female), the Mifflin-St Jeor equation.
FAQ
Why does age lower BMR?
Muscle mass and metabolic rate tend to fall with age.
Male BMR higher than female?
At the same size, yes — men typically have more lean mass.
Mifflin vs Harris-Benedict?
Mifflin-St Jeor is newer (1990) and usually closer to measured values.
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