No bones at all.
http://www.armystudyguide.com/conte...nd_weight_control/body-fat-calculator-2.shtml
This one is the US Army and uses Neck and Abdominal measurements.
http://www.armystudyguide.com/conte...nd_weight_control/body-fat-calculator-2.shtml
This one is the US Army and uses Neck and Abdominal measurements.