Penis size: who’s measuring up?
Researchers from King’s College in London have studied the penis size of 15,500 men in an attempt to end anxiety about what’s normal and what’s not.
They did not report on differences in penis size based on race.
Their systematic review of 20 studies involving men of all ages and most races, shows the average flaccid penis is 9.16cm long and 13.12cm when erect. A flaccid stretched penis reaches an average of 13.24cm.
A circumference of 9.31cm is average,