Health & Nutrition · Energy Balance

Calorie Calculator

Estimate daily calorie needs for weight maintenance, loss, or gain — based on BMR and activity level

Your Body Metrics

Enter your details below to get personalized calorie recommendations using the Mifflin-St Jeor equation (most accurate for general population).

Age years Gender
Height ft in or cm
Weight lbs or kg
Activity Level

Understanding Your Calorie Needs

⚖️ 3,500 Calories = 1 Pound

A daily deficit of 500 calories results in ~1 lb of fat loss per week. A surplus of 500 calories leads to ~1 lb gained per week.

📊 BMR vs TDEE

BMR = calories burned at complete rest. TDEE = total daily energy expenditure = BMR × activity factor.