There are a few ways of determining the fat content of a person's body, and among them the method developed by US Army that calculates body fat with good precision. This parameter is estimated for all service members of the US Army since they are required to meet the army percentage body fat (%BF) standards as a condition of military service.
Calculate your body fat and scroll down to check if you could join the army. The US Army body fat calculator uses a different formula to the method provided in our US Navy body fat calculator and body fat calculator, so you might also want to check them out.
According to the US Army Regulation 600-9, the tape should be made of a non-stretchable material, preferably fiberglass. All circumference measurements should be taken horizontally:
You can input the values in both metric and imperial units. Having taken these measurements, you can use them to find your body shape.
The equation is described in the Army Regulation 600-9 - The Army Body Composition Program.
It looks like this for men:
%BF = (86.010 * log10( waist – neck ) ) – [70.041 * log10(height)) + 36.76
And like this for women:
%BF = (163.205 * log10( waist + hip – neck ) ) – (97.684 * log10(height)) – 78.387
Please note that the formulas presented above are designed to work for values in imperial units.
The US Army body fat percentage standards for the military service described in the Regulation 600-9: