Calorie Calculator
Calculate daily calorie needs for weight loss, maintenance, or muscle gain based on your goals and activity level.
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Target = TDEE + Calorie Adjustment (based on goal)Variables
TDEETotal Daily Energy Expenditure−500 kcalDeficit for ~0.5 kg/week loss+250 kcalSurplus for ~0.25 kg/week gainExplanation
One kilogram of body fat contains approximately 7,700 calories. A daily deficit of 500 calories creates a weekly deficit of 3,500 calories, theoretically resulting in 0.5 kg of fat loss per week. Protein targets are set at 1.6-2.2g per kg of body weight to support muscle maintenance and growth.
What is the Calorie Calculator?
Calorie management is the cornerstone of body weight control. While nutrition quality matters enormously for health, the fundamental principle of energy balance - calories in versus calories out - determines whether you lose, maintain, or gain weight. A personalized calorie calculator bridges the gap between general guidelines and your specific needs.
How to Use This Calculator
Enter your personal details and select your goal. The calculator computes your BMR using the Mifflin-St Jeor equation, adjusts for activity level to get TDEE, then applies the appropriate calorie adjustment for your goal. It also provides a protein target to support your body composition goals.
Why Use MyCalculatorsHub's Calories Calculator?
Unlike generic calorie recommendations, this calculator accounts for your individual characteristics and specific goal, providing a personalized starting point for your nutrition plan. The protein target helps ensure you preserve muscle while losing fat or build muscle effectively.
Common Mistakes to Avoid
The biggest mistake is treating the calorie target as exact. These are estimates - individual metabolisms vary by up to 15%. Start with the calculated target, track your actual weight change over 2-4 weeks, and adjust by 100-200 kcal if results differ from expectations.
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