Calorie (TDEE) Calculator

Estimate daily maintenance calories (TDEE) from your stats and activity level using the Mifflin-St Jeor equation.

Usage Tip

Track intake and weight for two weeks, then adjust against this estimate for accuracy.

Daily Calories (TDEE)
— kcal/day
Maintenance energy
THE MATH
TDEE = BMR × activity factor
BMR (Mifflin-St Jeor) = 10×kg + 6.25×cm − 5×age + 5 (male) or − 161 (female)
TDEE is an estimate of the calories needed to maintain current weight; individual needs vary.
Scroll to Top

The calculators and tools on Formula Factory are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. Formula Factory makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.