1. What is the Body Fat Percentage Equation?

The body fat percentage equation estimates body fat from BMI, age, and gender. It provides a simple way to assess body composition and health risks associated with excess body fat.

2. How Does the Calculator Work?

The calculator uses the body fat percentage equation:

Where:

• \( BMI \) — Body Mass Index (kg/m²)
• \( Age \) — Age in years
• \( gender \) — 1 for male, 0 for female

Explanation: The equation accounts for the relationship between BMI, age, gender and body fat percentage, with different coefficients for each factor.

3. Importance of Body Fat Calculation

Details: Body fat percentage is a better indicator of health than BMI alone, as it distinguishes between fat mass and lean mass.

4. Using the Calculator

Tips: Enter BMI in kg/m², age in years, and select gender. All values must be valid (BMI > 0, age between 1-120).

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy body fat percentage?
A: For men: 6-24%, for women: 16-30%. Athletes typically have lower percentages.

Q2: How accurate is this equation?
A: It provides a reasonable estimate but may not be as accurate as methods like DEXA scans or skinfold measurements.

Q3: Can I use this if I'm very muscular?
A: The equation may overestimate body fat for very muscular individuals as it doesn't account for muscle mass specifically.

Q4: Are there age-specific considerations?
A: Yes, body fat percentage naturally increases with age even if weight remains stable.

Q5: Should I use this for medical purposes?
A: For clinical assessment, more precise measurement methods should be used.