Penis size pictures and penis information " By average it means the mid point of the male size range. So half of all men have an erect penis shorter than 5.9 inches, and half have one over 5.9 inches. The full details make interesting reading. For example, 12.5% of men are less than 5 inches when erect, and about 2% are less than four inches when erect - that's 2 men in every 100, or about 2 million men in the US alone. And most of these men are married and many have kids. Conclusions? A small penis is not important - unless it's important to you. Penis size is a male issue, not a female one. (In case you're wondering, only 7.5% of men are larger than 7 inches when erect, and only about 1 in a hundred is over 8 inches when erect.) "