# TDEE Calculator

> The TDEE Calculator computes Total Daily Energy Expenditure, the calories you burn per day, using validated equations (Mifflin–St Jeor, Harris–Benedict, Katch–McArdle, Cunningham). It also outputs BMR, BMI, lean body mass, macros, and life-stage adjustments.

Primary calculator: https://tdeecalculator.org/

## Formulas used

- Mifflin–St Jeor (1990). Am J Clin Nutr 51(2):241-7, PMID 2305711
- Harris–Benedict (revised by Roza & Shizgal 1984). Am J Clin Nutr 40(1):168-82
- Katch–McArdle. Exercise Physiology textbook (uses lean body mass)
- Cunningham (1980, 1991)

Direct answer (40 words): Total Daily Energy Expenditure (TDEE) is the calories your body burns in 24 hours, combining Basal Metabolic Rate, the thermic effect of food, and physical activity. For most adults, TDEE falls between 1,800 and 3,200 calories.

## Calculators

- TDEE Calculator: https://tdeecalculator.org/
- BMR Calculator: https://tdeecalculator.org/bmr-calculator/
- BMI Calculator: https://tdeecalculator.org/bmi-calculator/
- Macro Calculator: https://tdeecalculator.org/macro-calculator/
- Calorie Deficit Calculator: https://tdeecalculator.org/calorie-deficit-calculator/
- Maintenance Calorie Calculator: https://tdeecalculator.org/maintenance-calories-calculator/
- Body Fat Calculator: https://tdeecalculator.org/body-fat-calculator/

## Educational content

- BMR vs TDEE: https://tdeecalculator.org/bmr-vs-tdee/
- How accurate is TDEE?: https://tdeecalculator.org/how-accurate-is-tdee/
- Activity level guide: https://tdeecalculator.org/activity-level-guide/
- Why am I not losing weight?: https://tdeecalculator.org/why-am-i-not-losing-weight/
- TDEE for women (life-stage matrix): https://tdeecalculator.org/tdee-for-women/
- Mifflin–St Jeor equation: https://tdeecalculator.org/mifflin-st-jeor-equation/

## Editorial transparency

Reviewed by the TDEE Calculator Editorial Team. Last reviewed 2026-05-24.

Estimates are calculated using validated published formulas. Results are for informational purposes only; consult a healthcare professional for personal medical advice. Formula-based TDEE estimates miss by more than 250 kcal/day for at least half of users (MacroFactor 2024 data); we recommend tracking weight for 2–3 weeks and adjusting if needed.

## Accuracy disclosure

See https://tdeecalculator.org/how-accurate-is-tdee/ for the full accuracy analysis and adjustment protocol.

## Contact

https://tdeecalculator.org/contact/