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 health than BMI alone, as it distinguishes between fat mass and lean mass.

2. How Does the Calculator Work?

The calculator uses the formula specifically for men:

Where:

• \( BMI \) — Body Mass Index (kg/m²)
• \( Age \) — Age in years

Explanation: This formula accounts for the natural increase in body fat percentage that occurs with age, even when BMI remains constant.

3. Importance of Body Fat Measurement

Details: Knowing your body fat percentage helps assess health risks associated with obesity, monitor fitness progress, and establish appropriate weight management goals.

4. Using the Calculator

Tips: Enter your BMI (calculated from height and weight) and your current age. All values must be valid (BMI > 0, age between 1-120).

5. Frequently Asked Questions (FAQ)

Q1: Is this formula accurate for everyone?
A: This formula provides a reasonable estimate for most adult men, but may be less accurate for athletes, elderly, or those with unusual body compositions.

Q2: What are healthy body fat percentages?
A: For men: Essential fat 2-5%, Athletes 6-13%, Fitness 14-17%, Average 18-24%, Obese 25%+.

Q3: How does age affect body fat?
A: Body fat percentage naturally increases with age due to muscle loss and metabolic changes, even if weight remains stable.

Q4: Are there more accurate measurement methods?
A: Yes, methods like DEXA scans, hydrostatic weighing, or skinfold calipers can provide more precise measurements.

Q5: Should I use BMI or body fat percentage?
A: Body fat percentage gives a more complete picture of health, but BMI is easier to calculate and still useful for population studies.