calculate
Math

Calorie Calculator

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Calculate your daily calorie needs (TDEE) to maintain, lose or gain weight, using the accurate Mifflin-St Jeor equation and your activity level. Free, private, instant.

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Privacy & Security

All processing happens locally in your browser — nothing is uploaded.

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How to Use

Enter your age, sex, height, weight and activity level to get your maintenance, cutting and bulking calories.

Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.