CALORIES & METABOLISM

How to Calculate BMR

Basal Metabolic Rate (BMR) is an estimate of the energy your body uses at rest to support essential functions such as breathing and circulation.

The Mifflin-St Jeor equation

For adults, the Mifflin-St Jeor equation is commonly used as an estimate. For men: BMR = 10 × weight (kg) + 6.25 × height (cm) − 5 × age + 5. For women: BMR = 10 × weight (kg) + 6.25 × height (cm) − 5 × age − 161.

BMR vs. TDEE

BMR is a resting estimate. TDEE adds the energy associated with daily activity and is therefore more useful when estimating total daily calorie needs.

Why BMR is only an estimate

Real energy expenditure varies between people. Body composition, activity, health circumstances and other factors can affect energy needs.

Use the BMR Calculator · Use the TDEE Calculator · Read BMR vs TDEE