1. What is the 3500 kcal Rule?

The 3500 kcal rule is a widely-used estimation that a deficit of 3500 calories equals approximately 1 pound of weight loss. This calculation helps predict weight loss based on calorie reduction.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• 3500 kcal — Estimated energy equivalent of 1 pound of body weight
• Total Calorie Deficit — Sum of all calories burned minus calories consumed

Explanation: This calculation provides an estimate of weight loss based on the energy balance principle.

3. Importance of Calorie Deficit

Details: Understanding the relationship between calorie deficit and weight loss helps in setting realistic weight loss goals and expectations.

4. Using the Calculator

Tips: Enter your total calorie deficit in kcal (must be a positive number). The calculator will estimate your expected weight loss in pounds.

5. Frequently Asked Questions (FAQ)

Q1: Is the 3500 kcal rule accurate for everyone?
A: While useful for estimation, individual results may vary based on metabolism, body composition, and other factors.

Q2: Does this account for metabolic adaptation?
A: No, this simple calculation doesn't account for metabolic changes that occur during weight loss.

Q3: Can I use this for weight gain calculations?
A: Yes, the same principle applies - 3500 kcal surplus equals approximately 1 pound gained.

Q4: Why might actual weight loss differ?
A: Factors like water retention, muscle gain, hormonal changes, and measurement errors can affect results.

Q5: Is this rule outdated?
A: While newer research suggests the relationship isn't perfectly linear, it remains a useful general guideline.