Calorie Calculator
Our Calorie Calculator helps you determine your daily calorie needs based on your age, gender, activity level, and goals. Perfect for weight management, meal planning, and achieving your health and fitness objectives.
How to Use This Calculator
Enter your age, gender, height in centimeters, and weight in kilograms. Select your activity level: Sedentary (little exercise), Light (1-3 days/week), Moderate (3-5 days/week), Active (6-7 days/week), or Very Active (hard exercise, physical job). Choose your goal: Maintain Weight, Lose Weight (500 calorie deficit), or Gain Weight (500 calorie surplus). Click "Calculate" to see your Target Daily Calories, BMR (Basal Metabolic Rate), and TDEE (Total Daily Energy Expenditure). Use these numbers to plan meals and track progress. Recalculate periodically as your weight or activity level changes.
Why Calorie Calculation Matters
Understanding your caloric needs is fundamental to effective weight management and health goal achievement. This calculator uses the Mifflin-St Jeor equation, the gold standard for estimating BMR—the calories your body burns at rest. TDEE accounts for your activity level, giving you the total calories needed daily. By knowing your TDEE, you can create strategic calorie deficits for weight loss or surpluses for weight gain. Fitness professionals, nutritionists, and individuals use these calculations for meal planning, diet design, and tracking progress. Accurate calorie calculation helps you make informed decisions about food intake and exercise intensity.
Frequently Asked Questions
How accurate is the Mifflin-St Jeor equation?
The equation is considered the most accurate BMR estimation formula, typically within 10% accuracy for most people. Individual metabolism varies due to genetics, muscle mass, and medical conditions, so use results as a starting point and adjust based on your actual results.
Why is my TDEE different from my BMR?
BMR is calories burned at complete rest, while TDEE includes all daily activities and exercise. TDEE is typically 20-50% higher than BMR depending on your activity level. The more active you are, the greater the difference.
Should I eat exactly the target calories every day?
Target calories are a daily average. It's normal to have variation day-to-day. Aim to hit your target on average over the week rather than stressing about daily precision. Consistency over time matters more.
What if I'm not seeing expected results?
If results don't match expectations after 2-3 weeks, adjust your calorie intake by 100-200 calories. Your actual metabolism might differ from the estimate, or your activity level might be different than selected. Monitor for another 2-3 weeks before further adjustments.