This Is the Average Man's Body Graphic renderings of modern males - Todd is the most typical of American men. His proportions are based on averages from CDC anthropometric data. As a U.S. male age 30 to 39, his body mass index (BMI) is 29; just one shy of the medical definition of obese. At five-feet-nine-inches tall, his waist is 39 inches.

http://www.theatlantic.com/health/archive/2013/10/this-is-the-average-mans-body/280194/