TDEE Calculator
Last updated: October 15, 2026
Estimate total daily energy expenditure from BMR and activity level.
Estimated maintenance calories
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- Estimated BMR: —
- Weekly maintenance calories: —
On this page
Quick summary: Estimate total daily energy expenditure from BMR and activity level.
Read the method, example and limitations
Updated reference sections in this guide are in English.
Guide language: English. Updated October 15, 2026.
What this calculator estimates
The TDEE Calculator estimates total daily energy expenditure, which combines resting energy needs with the additional energy used for ordinary movement, work, exercise, and other daily activity.
Inputs and units
Enter Sex, Age, Weight (lb), Height (in), Activity level. Use the units shown. Enter positive adult measurements in the stated units. Zero does not stand for a missing measurement. Select Calculate after changing the values.
Method and assumptions
Convert pounds/inches to kg/cm, compute the Mifflin-St Jeor resting estimate and multiply by the selected activity factor. Weekly energy is seven times the unrounded daily estimate.
Worked example
For the male equation at age 35, 180 lb and 70 in, resting energy is about 1,757.72 kcal/day. Activity factor 1.2 gives approximately 2,109.26, displayed as 2,109 kcal/day.
Limitations
The activity factor is a broad planning assumption rather than a personal measurement. This adult estimate does not determine an appropriate dietary intake for children, pregnancy, illness or eating-disorder treatment.