Calorie Calculator

This calculator estimates how many calories you burn in a day. Enter your sex, age, height, weight and activity level in metric or imperial units, and it returns a resting rate from the Mifflin-St Jeor equation, your maintenance calories, and targets for losing or gaining about half a pound a week. The activity multipliers run from 1.2 for a sedentary week up to 1.9 for hard daily training. The figure is a population estimate rather than dietary advice, so check it against your own weight trend.