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Calorie Deficit Calculator
Estimate maintenance calories and a moderate daily calorie target from your body measurements and activity level.
Enter your details to see an estimate.
This is a general estimate. Individual calorie needs vary, and the result should not be treated as medical advice.
How the estimate works
The calculator estimates resting energy needs with the Mifflin-St Jeor equation, multiplies that estimate by an activity factor, then shows a modest 300–500 calorie reduction as an example target.
For adults with health conditions, pregnancy, breastfeeding, eating-disorder concerns, or other special circumstances, discuss calorie goals with a qualified healthcare professional.