How it works
We use the Mifflin-St Jeor equation for basal metabolic rate (BMR), then multiply by an activity factor to get your total daily energy expenditure (TDEE).
Example
A 30-year-old man, 170 lb and 5'9", has a BMR of about 1,721 calories. If he is sedentary, he burns about 2,066 calories a day.
Important
This is an estimate for healthy adults. It does not apply during pregnancy, for elite athletes or with medical conditions. Talk to a doctor or registered dietitian before big changes to your diet.
Frequently asked questions
How accurate is it?
Individual results can differ by 10% or more. Use it as a starting point.
See also
Results are estimates for information only and are not financial, legal or medical advice. Rates, taxes and fees vary — confirm with a professional or your lender.