123 123Calculator

BMR Calculator

Estimate your Basal Metabolic Rate — calories burned at rest.

Units
Gender
yrs
cm
kg
in
lb
Clear

What BMR tells you

Your Basal Metabolic Rate is the number of calories your body needs to keep functioning at rest — breathing, circulation, cell production and so on. It's the largest component of your daily calorie burn.

We use the Mifflin-St Jeor equation, widely regarded as the most accurate for the general population:

Men: 10·kg + 6.25·cm − 5·age + 5
Women: 10·kg + 6.25·cm − 5·age − 161