1. What is Body Fat Percentage?

Body fat percentage is the proportion of fat in your body compared to your total body weight. It's a more accurate indicator of fitness than body weight alone, as it distinguishes between fat mass and lean body mass.

2. How Does the Calculator Work?

The calculator uses the following formula for women:

Where:

• \( waist \) — Waist circumference at narrowest point (cm)
• \( hip \) — Hip circumference at widest point (cm)
• \( neck \) — Neck circumference (cm)
• \( height \) — Height (cm)

Explanation: This equation estimates body fat percentage based on circumference measurements and height, using logarithmic transformations to account for non-linear relationships.

3. Importance of Body Fat Measurement

Details: Knowing your body fat percentage helps assess health risks, track fitness progress, and set appropriate weight management goals. High body fat is associated with increased risk of chronic diseases.

4. Using the Calculator

Tips: For accurate results, measure circumferences with a flexible tape measure while standing relaxed. Measure waist at narrowest point, hips at widest point, and neck just below the larynx.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this method?
A: While not as precise as DEXA scans or hydrostatic weighing, it provides a reasonable estimate when measurements are taken correctly.

Q2: What are healthy body fat percentages?
A: For women: Essential fat 10-13%, Athletes 14-20%, Fitness 21-24%, Average 25-31%, Obese 32%+.

Q3: When should I measure?
A: Measure in the morning before eating, and avoid measuring right after exercise or when dehydrated.

Q4: Why different formulas for men and women?
A: Women naturally carry more body fat, especially in the hip and thigh area, requiring different calculation coefficients.

Q5: How often should I check my body fat?
A: Monthly measurements are sufficient to track trends, as daily fluctuations can occur due to hydration and other factors.