or 6 inches (in). In fact, the average is much smaller. While sizes vary widely, the average length is probably 12.9 to 13.97 cm (5.1–5.5 in), most likely toward this scale’s smaller end.

The average penis is between 5.1 and 5.5 inches, with one study finding that nearly everyone falls within this range. Penis enlargement methods do exist, but many may be harmful, do not work ...