2023年5月24日 · When it comes to length, the average is 3.61 for a flaccid penis and 5.16 inches for an erect penis. Most people with penises overestimate what the average penis size actually is, according...

As of 2015, a systematic review of 20 studies, of up to 15,521 men, who were measured by health professionals rather than themselves, concluded that the average length of an erect human penis is 13.12 cm (5.17 in), while the average circumference of an …

2024年12月22日 · 成熟男性的阴茎勃起后约长10厘米至16厘米（以硬尺在阴茎上方按压脂肪层，从 耻骨 计起），勃起后周长约9厘米至14厘米 [1]。 勃起长度短于7厘米在医学上被认定为 小阴茎。 阴茎的大小是因人而异的，没有一定的标准，与高矮肥瘦及种族并无关系。 男性阴茎的发育正如身体其他部分的发育一样，并没有一个固定的年龄开始或完结，但一般而言，男性在到达青春期后期（约20岁），阴茎便已完全发育。 基因和环境因素决定阴茎的大小，一些激素和影响 …

2015年3月3日 · From these studies, the authors extracted data on the length and circumference ("girth") of both flaccid and erect penises from 15,521 men. This information was used to simulate 20,000 observations. The following data represents the "average penis": Flaccid length: 9.16 cm (3.61 in) Stretched flaccid length: 13.24 cm (5.21 in)

2014年6月12日 · For adults, the average penis size is about 14-16cm (5.5-6.3 inches) when erect. The average girth for an erect penis is 12-13cm (4.7-5.1 inches). The average stretched penile length at birth is about 4 cm (1.6 in), and 90% of newborn boys will be between 2.4 and 5.5 cm (0.94 and 2.17 in).

2024年6月18日 · Most men believe that an average penis measures 15.24 centimeters (6.0 inches) or more when erect. This belief is partly spread by popular studies relying on self-reported measurements. Since...

2024年9月21日 · The average length of an erect penis is around 5.3 inches. Penis length and girth increases with age, but tends to stabilize by age 21. Some studies suggest that taller people might have larger penises on average, but height isn't a foolproof way to predict size. Genetics plays a major role in penis size as well.

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.

As of 2015, the average erect human penis is 13.12 cm (5.17 in) long and has a circumference of 11.66 cm (4.59 in). [2][3] Neither age nor size of the flaccid penis accurately predicts erectile length. There are also several common body modifications to …

3 天之前 · The average penis size is 3.7 inches long when flaccid and 5 inches long when erect. Cold temperatures, genes, and hormones can affect size.