Calorie Calculator
Calculate your daily calorie needs
About Calorie Calculator
Scientific Foundation
This calculator uses three validated equations to estimate your daily calorie needs:
Mifflin-St Jeor Equation (most accurate for most people)
Revised Harris-Benedict Equation (historical benchmark)
Katch-McArdle Formula (best for those who know body fat percentage)
Key Metrics Calculated
BMR (Basal Metabolic Rate):Â Calories burned at complete rest
TDEE (Total Daily Energy Expenditure):Â Maintenance calories including activity
Weight Loss Guidance
500 calorie/day deficit ≈ 1 lb (0.45 kg) weight loss per week
Never exceed 1,000 calorie/day deficit without medical supervision
Zigzag calorie cycling helps prevent metabolic adaptation
Why It Works
Accounts for age, gender, height, weight, and activity level
Based on peer-reviewed metabolic research
Provides personalized targets (not generic 2,000-calorie estimates)
Pro Tips for Best Results Combine with nutrient-dense foods (vegetables, lean proteins)
Recalculate every 5-10 lbs of weight change
For accuracy, measure body fat % if possible
Sample Calorie Needs
Activity Level | 130 lb Woman | 180 lb Man |
---|---|---|
Sedentary | 1,600-1,800 | 2,200-2,400 |
Active | 2,000-2,200 | 2,800-3,000 |
Remember:Â All calculations are estimates. Individual results may vary based on muscle mass, genetics, and other factors. Consult a healthcare provider before making drastic dietary changes.
Check Out This BMI Calculator
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