BMR Calculator
Resting calories from age, sex, height, and weight. Use cm, feet, kg, lb, or stone.
Estimate basal metabolic rate
BMR is a rough estimate of the calories your body uses at rest. This page uses the Mifflin-St Jeor formula from age, sex, height, and weight.
Enter age in years. Height can be centimeters, meters, feet and inches, or inches. Weight can be kilograms, pounds, or stone. Mix units if that is how you know your numbers.
It is a starting point, not a lab measurement. Muscle mass and health conditions can move the real number. For daily calories including activity, open the Calorie Calculator next.
BMR calculator FAQ
Height: centimeters, meters, feet and inches, or inches. Weight: kilograms, pounds, stone, or stone and pounds. Age is in years. You can mix units, for example 5 ft 10 in and 75 kg.
Basal metabolic rate is an estimate of the calories your body would use at rest. It does not include walking, work, or exercise.
Mifflin-St Jeor. Weight is converted to kilograms and height to centimeters before the formula runs.