Your age in years.
Your height in cm.
Your weight in kg.
Your gender.
Measure at the level of your navel.
Measure below the Adam's apple.
Measure at the fullest point of your hips (required only for females).
Your body fat percentage is an estimate of the proportion of your body weight that is fat tissue. This calculation uses the U.S. Navy method, which is based on waist, neck, and hip measurements.