Calorie Calculator

Developed by Hemant Parashar, B.Sc.

Calculate your daily calorie needs (TDEE) based on the Mifflin-St Jeor equation.

Medical Disclaimer

This tool is provided for educational and informational purposes only. The calculators do not constitute medical advice, diagnosis, or treatment. Always consult a qualified health professional regarding any medical conditions or weight management goals.

years
ftin
lbs

Daily Calorie Needs

BMR (Basal Metabolic Rate)
Maintain Weight (TDEE)
Lose 0.5 lb/week
Lose 1 lb/week
Gain 0.5 lb/week
Gain 1 lb/week

How to Use the Calorie Calculator

Estimates daily caloric needs for weight maintenance, weight loss, or weight gain based on user parameters. Follow these instructions to compute your results accurately:

  • Provide your age, gender, height, weight, and activity level to see your daily target.
  • Double-check all inputs to prevent calculation errors.
  • Results are processed instantly in your browser via client-side scripts.

Mathematical Formulas & Calculation Principles

The underlying calculations rely on the following mathematical logic:

TDEE = BMR * Activity Factor

Frequently Asked Questions (FAQ)

Q: How do I calculate calories for weight loss?

A: To lose weight, aim for a deficit of 500 calories below your Total Daily Energy Expenditure (TDEE) to safely lose about 1 lb per week.

This tool was developed and verified by Hemant Parashar, B.Sc. Graduate and part-time blogger, to provide free, high-accuracy mathematical resources for educational use. Complex parameters were verified by Hemant Parashar (Developer & Chief Editor).