About the Calorie Calculator
This calculator uses multiple scientific formulas to calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE), providing personalized nutritional recommendations. All calculations are based on validated scientific research data and can be used to create diet plans for weight loss, weight gain, or weight maintenance.
Calculation Methods
Basal Metabolic Rate (BMR)
BMR is the energy required by your body to maintain basic life functions while at complete rest. We offer several calculation formulas:
- Mifflin-St Jeor Formula: The newest and most accurate BMR calculation method
- Harris-Benedict Formula: The classic BMR estimation method
- Katch-McArdle Formula: A precise method that takes body fat percentage into account
Total Daily Energy Expenditure (TDEE)
TDEE is your actual daily calorie expenditure based on BMR and activity level, serving as a crucial reference for diet planning.
Usage Guidelines
- Enter your height, weight, and other basic information accurately
- Select the activity level that best matches your daily routine
- Choose an appropriate calorie adjustment plan based on your fitness goals
- Recalculate every 2-4 weeks to adapt to changes in your body condition
- Results are for reference only; consult a professional nutritionist for special circumstances
Important Notes
- Calculation results are estimates; individual actual needs may vary
- Athletes and special populations (pregnant women, elderly, etc.) may have significantly different energy needs
- Consult a healthcare professional or nutritionist before making significant calorie adjustments
- A healthy weight loss rate is typically 0.5-1 kg per week; rapid weight loss may be harmful to health