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Calculate Weight Loss Over Time

Weight Loss Formula:

\[ \text{Weight Loss (lbs)} = \frac{\text{Daily Deficit (kcal/day)} \times \text{Time (days)}}{3500} \]

kcal/day
days

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1. What is the Weight Loss Formula?

The weight loss formula calculates expected fat loss based on your daily caloric deficit over a period of time. It's based on the principle that 1 pound of body fat contains approximately 3,500 calories.

2. How Does the Calculator Work?

The calculator uses the weight loss equation:

\[ \text{Weight Loss (lbs)} = \frac{\text{Daily Deficit (kcal/day)} \times \text{Time (days)}}{3500} \]

Where:

Explanation: The equation shows that creating a consistent daily caloric deficit leads to predictable weight loss over time.

3. Importance of Caloric Deficit

Details: Maintaining a caloric deficit is the fundamental requirement for fat loss. This calculator helps quantify the relationship between deficit and expected results.

4. Using the Calculator

Tips: Enter your daily caloric deficit (typically 300-1000 kcal/day for sustainable weight loss) and the time period you want to evaluate. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Is the 3,500 calorie rule exact?
A: It's an approximation. Actual fat loss can vary based on metabolic adaptations and body composition changes.

Q2: Why isn't my weight loss matching the prediction?
A: Water weight fluctuations, changes in lean mass, and metabolic adaptation can affect actual results.

Q3: What's a safe daily caloric deficit?
A: Generally 300-1000 kcal/day, depending on your starting weight and activity level.

Q4: Does exercise affect the calculation?
A: Exercise increases your total daily energy expenditure, which can contribute to your caloric deficit.

Q5: Should I adjust my deficit as I lose weight?
A: Yes, as you lose weight your maintenance calories decrease, so you may need to adjust intake/exercise to maintain the same deficit.

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