1. What is a Calorie Deficit Calculator?

Definition: This calculator determines your daily calorie deficit based on your BMR, activity level (Harris-Benedict factor), and calorie intake.

Purpose: It helps individuals manage weight loss by calculating the difference between calories burned and calories consumed.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \text{Deficit} \) — Daily calorie deficit (kcal)
• \( \text{BMR} \) — Basal Metabolic Rate (kcal)
• \( \text{Harris-Benedict} \) — Activity level multiplier
• \( \text{Intake} \) — Daily calorie consumption (kcal)

Explanation: Your BMR (calories burned at rest) is multiplied by your activity factor to estimate total daily energy expenditure (TDEE), then your actual intake is subtracted to find the deficit.

3. Importance of Calorie Deficit Calculation

Details: A consistent calorie deficit is necessary for weight loss, typically 500 kcal/day for about 1 lb/week loss.

4. Using the Calculator

Tips: Enter your BMR (use our BMR calculator if unknown), select appropriate activity factor (default 1.55 for moderately active), and your actual daily calorie intake.

5. Frequently Asked Questions (FAQ)

Q1: How do I find my BMR?
A: Use our BMR Calculator or the Mifflin-St Jeor equation based on your age, gender, weight, and height.

Q2: What are typical Harris-Benedict factors?
A: 1.2 (sedentary), 1.375 (light activity), 1.55 (moderate), 1.725 (very active), 1.9 (extra active).

Q3: Is a larger deficit better?
A: Not necessarily. Deficits >1000 kcal/day can be unhealthy and lead to muscle loss.

Q4: What if my result is positive?
A: A positive value means you're in a deficit (good for weight loss). Negative means surplus (weight gain).

Q5: How accurate is this calculation?
A: It provides a good estimate, but individual metabolism varies. Monitor your actual weight changes.