1. What is Body Fat Percentage Lost?

Body fat percentage lost represents the difference between your initial body fat percentage and your current body fat percentage. It's a more accurate measure of fat loss than simple weight loss, as it accounts for changes in muscle mass.

2. How Does the Calculator Work?

The calculator uses a simple formula:

Where:

• Initial %BF — Your starting body fat percentage
• Current %BF — Your current body fat percentage

Explanation: This calculation shows the absolute change in your body fat percentage over time.

3. Importance of Tracking Body Fat Loss

Details: Tracking body fat percentage lost helps you monitor actual fat loss, distinguish between fat loss and water/muscle changes, and evaluate the effectiveness of your diet and exercise program.

4. Using the Calculator

Tips: Enter your initial and current body fat percentages (measured using the same method for consistency). Values must be between 0-100%, and initial %BF must be greater than or equal to current %BF.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is body fat percentage measurement?
A: Accuracy varies by method. DEXA scans are most accurate (~1-2% error), while calipers and bioelectrical impedance have higher variability (3-8% error).

Q2: What's a good rate of body fat percentage loss?
A: 0.5-1% per week is sustainable for most people. Faster loss may include muscle loss.

Q3: Should I measure at the same time of day?
A: Yes, measure under consistent conditions (time of day, hydration status) for best comparisons.

Q4: Why track %BF instead of just weight?
A: Body fat percentage shows true fat loss, while weight alone doesn't distinguish between fat, muscle, and water changes.

Q5: Can I gain muscle while losing fat?
A: Yes, especially for beginners or those returning to training. This may show as slower weight loss but faster %BF reduction.