BMR stands for Basal Metabolic Rate. It estimates the number of calories your body needs to support basic functions such as breathing, circulation, and maintaining body temperature while at rest.

This calculator uses the Mifflin-St Jeor equation. It uses your age, gender, height, and weight to estimate your BMR.

BMR estimates the calories needed by your body at rest. Daily calorie needs are higher because they also take your physical activity into account.

Yes. BMR can change with age because factors such as body composition, muscle mass, weight, and other individual factors can affect how many calories the body uses at rest.

Yes. The BMR Calculator is designed to work on smartphones, tablets, and desktop computers. You can enter your details and view the estimated results on any supported device.