1. What Is the 3500 Calorie Rule?

The 3500 calorie rule states that a deficit of 3500 calories equals approximately 1 pound of weight loss. This is based on the estimated energy content of 1 pound of body fat.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• Calorie Deficit — Total calories burned minus calories consumed (per week)
• 3500 — Estimated calories in 1 pound of body fat

Explanation: This provides an estimate of how much weight you might lose based on your calorie deficit.

3. Importance of Calorie Deficit

Details: Creating a calorie deficit is fundamental to weight loss. This calculator helps quantify expected weight loss from a given deficit.

4. Using the Calculator

Tips: Enter your total weekly calorie deficit (calories burned minus calories consumed). The result shows estimated pounds lost per week.

5. Frequently Asked Questions (FAQ)

Q1: Is the 3500 calorie rule accurate for everyone?
A: It's a general estimate. Individual results may vary based on metabolism, body composition, and other factors.

Q2: Why might actual weight loss differ from the calculation?
A: Water retention, muscle gain, metabolic adaptation, and measurement errors can affect results.

Q3: Is 3500 calories exactly 1 pound of fat?
A: Studies show it ranges from 3500-4000 calories per pound, but 3500 is the commonly used estimate.

Q4: Can I use this for weight gain calculations?
A: Yes, the same principle applies - 3500 calorie surplus ≈ 1 pound gained.

Q5: What's a healthy weekly weight loss goal?
A: Typically 1-2 pounds per week is considered safe and sustainable.