Calculate Body Fat Percentage

You can calculate body fat percentage with this easy tool. It uses the U.S. Navy Circumference Method to estimate the percentage of your body that is made up of fat. Body fat percentage is a better way to determine whether you are overweight than the body mass index (BMI)

The Measurements

Take the following measurements carefully. They need to be accurate to within 0.5cm or 0.25 inches

  • Height: taken without shoes
  • Neck: taken below the larynx sloping slightly downward at the front
  • Waist: for men at navel height, for women at the smallest point
  • Hips: (women only) at the largest point

Body Fat Percentage Calculator









What this Means

Description Women Men
Essential fat 10–12% 2-4%
Athletes 14–20% 6–13%
Fitness 21–24% 14–17%
Acceptable 25–31% 18–26%
Overweight 32-41% 27-37%
Obese 42%+ 38%+

Figures from the American Council on Exercise

Other Calculators and Charts:

  • Basal Metabolic Rate Calculator
  • BMI Calculator Chart
  • Calorie Intake to Lose Weight