Formula-based result
Enter measurements and select Calculate.
Energy method
TDEE = Mifflin-St Jeor BMR × selected activity factor. Available factors are 1.2, 1.375, 1.55, 1.725, and 1.9.
Maintenance-energy boundary
The output estimates expenditure under broad assumptions. Actual requirements vary. It does not prescribe intake, a calorie deficit, weight loss, treatment, or a nutrition plan.
Worked example
A formula BMR of 1,780 kcal/day with a 1.55 activity factor produces an estimated TDEE of 2,759 kcal/day.
Educational adult-use boundary
This calculator is an informational mathematical estimator for adults. It does not diagnose health, recommend treatment, prescribe food intake, define an ideal body, or provide pediatric or pregnancy guidance.