It's a subject many men have wondered about at some point in time: What is the average penis size? According to one study published in the.
The sizes had been printed across a range an average American penis size when erect of 6.
Some men go to extreme lengths to try to increase the size of their penis. Research has found the average erect penis size varies from around 13cm to 18cm.
Scientific studies have been performed on the erect length of the adult an average erect penis length of 12.9 cm (5.1 in) was measured.