Most men are conscious about the size of their penis.
However, they don't have a clear understanding of what the average is. All length measurements were taken when the penises were erect, along the top of the penis, from the point where the top of the penile shaft meets the pubic area to the tip. For uncircumcised men the foreskin was retracted. All girth measurements were taken from around the middle of the penis. This study demonstrated that the average size of a penis was just over 5 inches in length and 3.75 inches in girth.