Calorie Deficit Calculator

Estimate your daily calorie target, BMR, TDEE, and projected weight loss. All calculations happen in your browser — your data never leaves your device.

What You'll Learn

BMR (Basal Metabolic Rate)

Your body's baseline energy requirement at complete rest, calculated using the Mifflin-St Jeor equation.

TDEE (Total Daily Energy Expenditure)

Your estimated daily calorie burn including activity, derived by multiplying BMR by an activity factor.

Calorie Deficit

Understand how reducing calories below TDEE creates a deficit that can lead to gradual weight loss.

Estimated Projection

See an estimated timeline to reach your goal weight based on your selected deficit — clearly labeled as an estimate.

Frequently Asked Questions

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