How it works? Choose whether you want to use 3, 4 or 7 sites for the skinfold measurements and then enter the results in millimeters inside the appropriate sections. Gender: Male Female Your age: Your weight: Number of sites: 7 4 3 Triceps: Pectoral: Midaxilla: Subscapula: Abdomen: Suprailiac: Quadriceps: Calculate! Your parameters: Gender Age Weight Number of sites Triceps Pectoral Midaxilla Subscapula Abdomen Suprailiac Quadriceps Your result: Body Density: Body Fat Percent: Lean Body Weight: Fat Weight: