Calorie Calculator

BMR (Basal Metabolic Rate) is the calories your body burns just to stay alive at complete rest — breathing, circulation, cell repair — while TDEE (Total Daily Energy Expenditure) adds your daily activity and exercise on top of that, giving a more realistic estimate of your true maintenance calorie needs.

Mifflin-St Jeor (1990) is generally considered more accurate for modern populations than the older Harris-Benedict equation (1919), and it's the formula most commonly recommended by dietitians and used in current nutrition research and software today.

Pick the option that best matches your typical week: sedentary means little to no regular exercise, light means light exercise 1-3 days/week, moderate means exercise 3-5 days/week, active means exercise 6-7 days/week, and very active combines hard daily exercise with a physically demanding job.

A 500-calorie/day deficit below your TDEE is a commonly cited rough estimate for losing about 1 lb (roughly 0.45 kg) of body fat per week, since approximately 3,500 calories correspond to a pound of fat — though actual results vary by individual metabolism and body composition.

No — this is a general estimation tool based on population-average formulas, not personalized medical advice; consult a doctor or registered dietitian for guidance tailored to your specific health situation, especially if you have any medical conditions.