Calorie Calculator
Find your daily calorie needs to maintain, lose, or gain weight.
How to Use This Calculator
- Enter your details in the fields above — all fields are used only in your browser, nothing is stored or sent anywhere.
- Double-check your units (cm/kg) before submitting for the most accurate result.
- Click Calculate to see your personalized result instantly.
- Results are estimates based on established formulas — for medical decisions, always confirm with a healthcare professional.
Frequently Asked Questions
How many calories should I eat a day?
It depends on your age, sex, height, weight, and activity level. This calculator estimates your maintenance calories using the Mifflin-St Jeor formula, then adjusts for your goal.
Is this calculator accurate?
It gives a solid estimate based on established formulas used by dietitians, but individual metabolism varies — use it as a starting point and adjust based on real-world results over 2–3 weeks.
