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Body Fat Calculator

This calculator uses the formula developed by the U.S. Navy to estimate your body fat percentage without calipers. Use a tape measure and enter your waist, hip, and neck measurements. Combine these measurements with your gender and height and this calculator will estimate your percent of body fat, how much of your weight is lean mass and how much is fat mass, and your general fitness category. The water displacement test is the most accurate way to determine body fat percent, but the US Navy or YMCA formula is accurate within 1-3% for most people.