Human penises vary in size on a number of measures, including length and circumference Distribution of penis sizes by length. Erect penises (green) are 45%.
George Costanza's distress at the “shrinkage” of his penis after exiting a cold pool A graph of the size distribution shows that outliers are rare.
More Information. These percentiles are reported assuming that penis length and girth are distributed normally with the following parameters.
We'll first look at the overall distribution, and then look at studies with a reported N smaller . An examination of Rushton's theory of differences in penis length.