FindMyTDEE.net is a free, instant TDEE (Total Daily Energy Expenditure) calculator designed for anyone who wants to understand how many calories their body burns each day. Whether you're aiming to lose weight, build muscle, or simply maintain your current weight, knowing your TDEE is the essential starting point.
The calculator uses the Mifflin-St Jeor equation — the most accurate BMR formula for most adults according to peer-reviewed research. Enter your age, sex, height, weight, and activity level to get your personalised TDEE, along with calorie targets for weight loss, maintenance, and muscle gain. Results update instantly as you type, and you can save or share your exact calculation via a unique URL.
No signup is required, no personal data is stored, and the tool is completely free to use. You can also embed the calculator on your own website or blog using the iframe code provided on the main page.
For questions or feedback, email us at contact@findmytdee.net.