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Calorie Calculator

Estimate daily calorie needs based on age, weight, height, and activity level.

Results are estimates using the Mifflin-St Jeor equation. Consult a healthcare provider for personalized advice.

How to Use the Calorie Calculator

Enter your values in the fields above and click Calculate. Results appear instantly below the tool. Use the Clear button to reset all fields and start over.

About This Tool

Estimate daily calorie needs based on age, weight, height, and activity level. All calculations happen in your browser — your data is never sent to any server. Bookmark this page for quick access anytime you need it.

❓ Frequently Asked Questions

How many calories to lose weight?
A safe deficit is 500-1000 calories below maintenance, resulting in 1-2 lbs/week loss. Never go below 1200 without medical supervision.
What is BMR?
Basal Metabolic Rate is the calories your body burns at complete rest for basic functions like breathing and circulation.

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