TDEE calculator
Your total daily energy expenditure: the calories that keep your weight where it is, at every activity level. Free, nothing leaves your browser.
Your maintenance calories
—kcal a day
Fill in your details to see your maintenance calories.
Fabee sets this up for you and counts every meal against it.
DownloadAn estimate for healthy adults, not medical advice. Pregnant, breastfeeding, under 18 or managing a health condition? Ask your doctor.
How it works
Your BMR (basal metabolic rate) comes from the Mifflin-St Jeor equation, the most reliable everyday formula for the calories your body burns at rest. Multiplying it by your activity level gives your TDEE: your maintenance calories.
It’s a starting point. Eat at it for two or three weeks, watch your weight, and adjust by 100 to 200 calories if it moves.
Sources: Mifflin et al., A new predictive equation for resting energy expenditure, Am J Clin Nutr 1990.