1. What is the Weight Loss Formula?

The weight loss formula calculates estimated fat loss based on a sustained caloric deficit over time. It's based on the principle that 1 kg of body fat contains approximately 7,700 kcal of energy.

2. How Does the Calculator Work?

The calculator uses the weight loss formula:

Where:

• \( deficit \) — Daily caloric deficit (kcal/day)
• \( days \) — Duration of deficit (days)
• \( 7700 \) — Energy content of 1 kg body fat (kcal)

Explanation: The equation shows how sustained caloric deficit leads to fat loss over time.

3. Importance of Caloric Deficit

Details: Creating a caloric deficit is the fundamental requirement for fat loss. This calculator helps women plan their weight loss goals realistically.

4. Using the Calculator

Tips: Enter your daily caloric deficit (typically 300-500 kcal/day for sustainable loss) and the time period in days. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Is 7,700 kcal really equal to 1 kg of fat?
A: This is an approximation - actual fat tissue contains about 87% lipids, so 1 kg is roughly 7,700 kcal.

Q2: Why is my actual weight loss different?
A: Water fluctuations, glycogen changes, and metabolic adaptations can make short-term weight changes differ from fat loss predictions.

Q3: What's a safe daily deficit for women?
A: Most experts recommend 300-500 kcal/day deficit, leading to 0.25-0.5 kg loss per week.

Q4: Does this account for metabolic slowdown?
A: No, as you lose weight your TDEE decreases, so deficits may need adjustment over time.

Q5: Can I use this for very large deficits?
A: Very large deficits (>1000 kcal/day) may lead to more muscle loss and aren't typically recommended.