Basal metabolic rate: (BMR) is the minimum energy needed

Basal metabolic rate (BMR) is the minimum energy needed for vital functions. Learn how to calculate yours using the revised Harris-Benedict equation. Basal Metabolic Rate is the most popular factor whenever discussing weight gain or fitness level. Learn to calculate your BMR here! Use the BMR calculator to determine how many calories you should consume while resting all day, and learn how much energy you burn while you rest. The basal metabolic rate (BMR) is the number of calories your body burns at rest. Even when not moving, the body needs a certain number of calories to maintain basic functions such as breathing, cell production, and circulation.