TDEE Calculator
Calculate your Total Daily Energy Expenditure — the number of calories you burn per day based on your activity level.
Frequently Asked Questions
What is TDEE?
TDEE (Total Daily Energy Expenditure) is the total number of calories your body burns in a day, including your basal metabolism, physical activity, and the thermic effect of food. It is the most important number for weight management.
How is TDEE calculated?
TDEE = BMR x Activity Multiplier. Your BMR (Basal Metabolic Rate) is calculated using either the Mifflin-St Jeor or Harris-Benedict equation, then multiplied by a factor based on your activity level.
Which formula is more accurate?
The Mifflin-St Jeor equation (1990) is considered more accurate for most people, which is why it is the default. The Harris-Benedict equation (1919, revised 1984) tends to overestimate BMR slightly.
How do I use TDEE to lose weight?
To lose weight, eat fewer calories than your TDEE. A deficit of 500 calories/day results in about 1 lb (0.45 kg) of weight loss per week. A deficit of 250 is safer and more sustainable for most people.