1. What is the Calorie Deficit Formula?

The calorie deficit formula calculates how many calories you need to consume daily to reach your weight loss goal by a specific date, based on your TDEE (Total Daily Energy Expenditure) and the principle that 1 kg of body fat equals approximately 7700 kcal.

2. How Does the Calculator Work?

The calculator uses the calorie deficit equation:

Where:

• \( \text{weight\_loss\_kg} \) — Desired weight loss in kilograms
• \( \text{days} \) — Number of days to achieve the goal
• \( \text{TDEE} \) — Total Daily Energy Expenditure in kcal/day
• 7700 — kcal per kg of body fat

Explanation: The formula calculates the daily calorie deficit needed to lose the specified weight over the given timeframe, then subtracts this from your TDEE to determine your daily calorie target.

3. Importance of Calorie Deficit Calculation

Details: Calculating an appropriate calorie deficit helps ensure safe, sustainable weight loss while maintaining energy levels and preventing excessive muscle loss.

4. Using the Calculator

Tips: Enter your weight loss goal in kg, the number of days to achieve it, and your TDEE. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why 7700 kcal per kg?
A: This is the generally accepted energy equivalent of 1 kg of body fat, though individual variations exist.

Q2: What's a safe rate of weight loss?
A: 0.5-1 kg per week is generally recommended for sustainable loss without excessive muscle loss.

Q3: How accurate is TDEE?
A: TDEE estimates vary. Monitor your progress and adjust as needed based on actual results.

Q4: Should I eat below my BMR?
A: It's generally not recommended to eat below your BMR (Basal Metabolic Rate) for extended periods.

Q5: What if I'm not losing weight as predicted?
A: Your TDEE may need adjustment, or you may need to track calories more carefully. Consider consulting a nutritionist.