A familiar situation
Estimate total daily energy from resting expenditure and a selected activity factor.
How to use this calculator
- Enter weight, height, age and the remaining inputs.
- Select Calculate to see the answer and its breakdown.
- Keep a scenario, change an input and compare the results.
Use consistent units and check the assumptions below before applying the result.
How tdee is calculated
TDEE ≈ Mifflin–St Jeor REE × activity factor. Common planning factors range from 1.2 for sedentary to 1.9 for very high activity. An estimated resting expenditure of 1,400 kcal/day with a 1.55 factor gives TDEE near 2,170 kcal/day.
TDEE≈Mifflin–St Jeor resting estimate×activity multiplier.An estimated resting expenditure of 1,400 kcal/day with a 1.55 factor gives TDEE near 2,170 kcal/day.
Assumptions & useful context
Avoid adding workout calories again if they are already included in the chosen activity level.
Health calculations are estimates for education. They cannot diagnose a condition or replace a clinician’s assessment. Individual needs vary, especially during pregnancy, illness and growth.
Frequently asked questions
Does this directly measure daily burn?
No. Both the base equation and activity factor are estimates.
Can exercise be double-counted?
Yes, if the activity factor already includes workouts and you then add workout calories again.