Calorie calculator
Estimate how many calories you burn each day and how many to eat to reach your goal.
How it works
Your basal metabolic rate comes from the Mifflin-St Jeor equation, then it is multiplied by an activity factor from 1.2 to 1.9.
Eating about 500 calories less than maintenance each day leads to roughly half a kilogram (one pound) of weight loss a week.