Most used
Calorie calculator
How many calories a day for your body, activity and goal.
Open calculatorEnergy & targets
Four tools, one number underneath
Calorie deficit calculator
How far below maintenance to eat, and what that actually costs per week.
BMR calculator
Basal metabolic rate from Mifflin-St Jeor, with the equation shown.
Food, recipes & conversions
For the plate in front of you
One engine, nine questions.
Every tool here runs the same Mifflin-St Jeor implementation, so the numbers agree with each other. If your TDEE says 2,123 on one page it says 2,123 on all of them — which sounds obvious until you have used a site where it does not.
All estimates are for generally healthy adults and are not medical advice. If you have a medical condition, are pregnant, or are recovering from an eating disorder, speak to a qualified professional before acting on a calorie target.
