The average penis size is not nearly as big as many people think it is! A 2020 review of research on penis size found that the average length of an erect penis is between 5.1 inches and 5.5... How To Know If Your Penis Size Is Normal And What Science Says About Whether It Matters The average length and girth of a penis is shorter than many of us think. Human penis size is talked about by length and circumference of penis. It is longer than in other primates except for the chimpanzee. The chimpanzee's penis is about the same length. [1] The average human erect penis is about 12.9 to 15 centimetres (5.1 to 5.9 in) in length, the circumference is about 12.3 centimetres (4.8 in). [2][3][4] There is no scientific relation between either penis size or race, and shoe size or stretched penis size. At birth the penis is between 2.4 and 5.5 cm long ... Many people worry that their penis is not big enough, but that may not be the case. Here, see what research says about the average penis size.
