When it comes to tracking weight loss, most of us rely on the scale to tell us whether we've lost or gained weight. But, a scale can't tell you how much fat you have or how much you've lost.  Knowing your body composition can ensure that you're losing fat and not muscle. Simply enter your measurements into the fields below and our body fat calculator will give you an estimate of your body fat percentage.

MenScience uses the same tool that the Naval Research Center uses in its research for the Navy.