Thickness of Penis

It’s a subject many men have wondered about at some point in time: What is the average penis size?

According to one study published in the British Journal of Urology International (BJUI)Trusted Source, the average length of a flaccid penis is 3.61 inches, while the average length of an erect penis is 5.16 inches.

The average girth is 3.66 inches for a flaccid penis and 4.59 inches for an erect penis. Girth is the circumference of the penis at its widest section.

Keep reading to learn more about penis size, how much size matters for sexual satisfaction, and what you should do if you’re worried that your penis is too small.

Many people experience anxiety about whether their penis is big enough and if it will satisfy a sexual partner. This can affect a person’s self-confidence and self-image. Often, however, these fears are unfounded.

A 2019 research article notes that most males believe the average length for an erect penis is around 15.2 centimeters (cm)Trusted Source or 6 inches (in). In fact, the average is much smaller.