Calculate your daily calorie needs, BMR, and TDEE
Our calorie calculator uses the Mifflin-St Jeor equation to calculate your Basal Metabolic Rate (BMR) - the calories your body burns at rest. Then we factor in your activity level to determine your Total Daily Energy Expenditure (TDEE).
Men: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) + 5
Women: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) - 161
BMR (Basal Metabolic Rate): The calories your body burns at complete rest. This is the minimum energy needed for vital functions like breathing and circulation.
TDEE (Total Daily Energy Expenditure): Your actual daily calorie needs including all activities. This is your maintenance calorie level.
Weight Loss: We subtract 500 calories/day for 1 lb/week loss (3500 calories = 1 lb fat)
The calculator gives you a number. These explain what to do with it.
BMR, the Mifflin-St Jeor equation, activity multipliers, TDEE, and why weight loss slows down over time.
Read the guide →Calorie and protein targets after bypass or sleeve surgery, with ASMBS and Academy of Nutrition and Dietetics guidance compared.
Read the guide →Hitting a protein target on an appetite that has halved, and the options that work when solid food does not.
Read the guide →TDEE, formula accuracy, minimum safe intake, plateaus, and why the calculator asks for height and age.
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