1. What is a Calorie Deficit Calculator?

Definition: This calculator determines the difference between calories burned (expenditure) and calories consumed (intake).

Purpose: It helps with weight management by showing how many fewer calories you're consuming compared to what your body uses.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• Deficit — Calories under maintenance (kcal)
• Expenditure — Total daily energy expenditure (TDEE) (kcal)
• Intake — Calories consumed (kcal)

Explanation: A positive result indicates weight loss potential, while a negative result indicates weight gain potential.

3. Importance of Calorie Deficit

Details: Creating a calorie deficit is fundamental for weight loss. A deficit of 500 kcal/day typically leads to about 1 pound (0.45 kg) of fat loss per week.

4. Using the Calculator

Tips: Enter your daily energy expenditure (from TDEE calculators) and your actual calorie intake. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a healthy calorie deficit?
A: Generally 300-500 kcal/day for moderate weight loss, up to 1000 kcal/day for aggressive loss (under supervision).

Q2: How do I find my TDEE?
A: Use our TDEE Calculator or multiply your BMR by your activity factor.

Q3: Why isn't my weight changing with a deficit?
A: Possible reasons include water retention, inaccurate tracking, metabolic adaptation, or incorrect TDEE estimates.

Q4: Can the deficit be too large?
A: Yes, deficits >1000 kcal/day can cause muscle loss, metabolic slowdown, and nutritional deficiencies.

Q5: Should I track macros too?
A: For optimal results, yes. Adequate protein (1.6-2.2g/kg body weight) helps preserve muscle during weight loss.