Body Fat Index Calculator Metric

Body Fat Index (BFI) is a metric that helps understand your body composition, i.e., the proportion of fat in your body. It’s crucial for assessing your health risks and setting fitness goals.

1. Enter your age, gender, weight, and height.
2. Click ‘Calculate’.
3. View your BFI and other results.

The BFI calculator uses the following formula:

BFI = (1.2 * (Weight in kg / (Height in cm)^2)) + (0.23 * Age) – (10.83 * Gender) – 5.4

Where Gender is 0 for males and 1 for females.

Average Body Fat Percentage by Age and Gender

Age	Male	Female

Body Fat Percentage Categories

Category	Male	Female

• Regularly monitor your BFI to track progress.
• For accurate results, use a calibrated scale and measure your height correctly.
• Consult a healthcare professional for personalized advice.

What is a healthy Body Fat Index?

For adults, a healthy BFI range is 10-20% for men and 20-30% for women.

Learn more about obesity and overweight from the World Health Organization.

Understand BMI categories from the Centers for Disease Control and Prevention.