Health
Calorie Calculator: Determine Your Daily Calorie Needs
Learn how to calculate your daily calorie needs based on activity level, goals, and body composition.
Understanding your daily calorie needs is the foundation of weight management, whether you want to lose, gain, or maintain weight.
Basal Metabolic Rate (BMR)
BMR is the calories your body burns at rest just to maintain basic functions. The Mifflin-St Jeor equation is most accurate:
- Men: BMR = 10 × weight(kg) + 6.25 × height(cm) - 5 × age + 5
- Women: BMR = 10 × weight(kg) + 6.25 × height(cm) - 5 × age - 161
Total Daily Energy Expenditure (TDEE)
Multiply BMR by your activity level: Sedentary (1.2), Lightly active (1.375), Moderately active (1.55), Very active (1.725), Extra active (1.9).
Calories for Weight Goals
- Lose weight: Eat 500 calories less than TDEE for ~1 lb/week loss
- Maintain: Eat at your TDEE
- Gain weight: Eat 300-500 calories above TDEE
Quality Matters
Not all calories are equal. 500 calories of vegetables provide more nutrients and satiety than 500 calories of soda.
Frequently Asked Questions
How accurate are calorie calculators?
They provide estimates. Individual metabolism varies based on genetics, muscle mass, hormones, and other factors. Track results and adjust.
How many calories should I cut to lose weight?
A 500-calorie daily deficit leads to about 1 pound of weight loss per week. Don't go below 1200 (women) or 1500 (men) without medical supervision.
Do I need to count calories forever?
Not necessarily. Counting builds awareness. Once you learn portion sizes and calorie content of foods, you can maintain without strict counting.