1. What Is Weight Loss Calculation?

The weight loss calculation estimates how much weight you can lose based on your daily calorie deficit, time period, and age. It accounts for the fact that 7700 kcal deficit equals approximately 1 kg of weight loss.

2. How Does The Calculator Work?

The calculator uses the weight loss formula:

Where:

• \( deficit \) — Daily calorie deficit (kcal/day)
• \( days \) — Time period in days
• \( 7700 \) — Approximate kcal in 1 kg of body fat
• Age adjustment — Accounts for slower metabolism with age

Explanation: The equation calculates weight loss based on energy balance, with adjustment for age-related metabolic changes.

3. Importance Of Calorie Deficit

Details: Creating a consistent calorie deficit is the fundamental requirement for weight loss. This calculator helps plan realistic weight loss goals.

4. Using The Calculator

Tips: Enter your planned daily calorie deficit (typically 300-1000 kcal/day), the time period in days, and your age. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why 7700 kcal per kg?
A: This is the approximate energy contained in 1 kg of body fat, though individual results may vary slightly.

Q2: How does age affect weight loss?
A: Metabolism typically slows by about 0.2% per year after age 30, meaning you may lose weight slightly slower as you age.

Q3: Is this calculation accurate for everyone?
A: While the formula provides a good estimate, individual results may vary based on body composition, activity level, and other factors.

Q4: What's a safe calorie deficit?
A: Generally 300-1000 kcal/day is safe. Very large deficits can cause muscle loss and metabolic slowdown.

Q5: Should I adjust for exercise?
A: Your calorie deficit should already account for both reduced intake and increased exercise expenditure.