Calorie Calculator
Daily calorie needs
Use this when you need a fast, accurate result — no sign-up, works entirely in your browser.
BMR—
Maintain weight—
How to Use
- Enter your details into the fields above.
- Click the calculate button to get your result instantly.
- Use the clear button to start a new calculation.
Example
- Male, 30, 80 kg, 180 cm, moderate activity → BMR 1780 kcal; maintain 2759 kcal/day
- Female, 30, 65 kg, 165 cm, moderate activity → BMR 1,370 kcal; maintain weight ≈ 2,124 kcal/day
Formula
BMR uses Mifflin-St Jeor: men 10 × kg + 6.25 × cm − 5 × age + 5; women 10 × kg + 6.25 × cm − 5 × age − 161. Daily needs = BMR × activity factor (1.2 sedentary, 1.375 light, 1.55 moderate, 1.725 active, 1.9 very active).
About Calorie Calculator
Daily calorie needs. This free online tool gives you fast, accurate results without registration or downloads.
Everything runs locally in your browser, so your data is never uploaded or stored — privacy first.
Frequently Asked Questions
Is the Calorie Calculator free to use? +
Yes, it is completely free with no registration or download required.
Is my health data private? +
Yes. All calculations happen locally in your browser. Your health information is never uploaded or stored.
Is this a substitute for medical advice? +
No. This tool provides estimates for informational purposes only and is not a substitute for professional medical advice.