Body Fat Scale Reviews - i need the equation to measure body fat, given chest, superailiac(abdomen) and the tigh/quad using callipers?

i need the equation to measure body fat, given chest, superailiac(abdomen) and the tigh/quad using callipers?

given chest, superailiac(abdomen) and the tigh/quad in mm for the unit of measurement using callipers.

http://walking.about.com/gi/dynamic/offsite.htm?zi=1/XJ&sdn=walking&zu=http%3A%2F%2Fwww.linear-software.com%2Fonline.html
if you want to know how much body fat you have just simply garb a part of you stomach area or arm and pull slightly. if you pull more than an inch you need to work on your diet and exercise routine.