To know whether you meet the standard, it is first of all important to measure the length of the penis properly. You do this by measuring it at the top (belly side) in both flaccid and stiff conditions. From your pubic bone, where the penis starts, to the tip of the glans. You measure the circumference at the thickest part.
The circumference of a penis is on average between 9.5 and 12 centimeters. The diameter of the average penis is 3.2 centimeters when relaxed and 4.1 centimeters when erect.
There is no clear correlation between the length of a flaccid penis and one at full strength. So the size of the penis when flaccid says nothing about how long it will be when erect. Research has shown that a small flaccid penis grows about twice as much as a long flaccid genitalia.
That the shoe size and finger length say something about the penis is not necessarily untrue. For example, the longer the (index) finger, the greater the chance of a longer penis. The hormone testosterone seems to play a role in this. More testosterone leads to longer fingers and penis. The same applies to the nose, which also grows under the influence of testosterone.
During puberty, the penis grows. When the maximum is reached differs per person. Shrinkage is also an issue. With age, the erect penis often shortens by one or two centimeters. This is caused by arteriosclerosis and the formation of scar tissue.
The penis also shrinks in cold weather and low temperatures. There are also indications that the penis is generally slowly getting smaller.
It’s not important as long as it’s tasty, and multiple penises are also allowed!