Basal Metabolic Rate — calories your body burns at complete rest (Mifflin-St Jeor equation).
BMR (Basal Metabolic Rate) is the calories your body burns at complete rest. This calculator uses the Mifflin-St Jeor equation: 10×weight(kg) + 6.25×height(cm) − 5×age + 5 (men) or −161 (women).
BMR alone assumes zero movement. The table multiplies your BMR by standard activity factors (1.2 for sedentary up to 1.9 for very active) to estimate maintenance calories — use the Calorie Calculator for a goal-based target.
The Mifflin-St Jeor equation adds +5 for men and −161 for women to account for average differences in body composition between sexes at the same height, weight and age.