The average human penis?

Fill a condom with as much water as possible. Then you realize how small you are.

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Regardless of age and ethnicity, the average human penis, when erect, is 5-7 inches (12-17cm) in length and roughly 1.5 inches thick.

The size of the human penis has little correlation to the size any other male body part, such as a foot, nose or thumb.

Flaccid (limp) penises show greater variability in size, even from one moment to the next, like when they get cold. For example, check out Seinfeld’s “shrinkage episode”—when George was spotted naked after cold plunge in the pool:

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