Penis size

[Demon1192]

Hi am a 20 year old and I don't think I am fully develop I am 5 when erected is that fully grown or not

[Human Male]

20? Yes, that's fully grown. (>95% likelyhood)

The average American male, however, is 5.1in (some surveys place it at around 6in, but they're usually more self-reporting than scientifically measured).. and the average female reproductive organ is approximately 4.9-6.2in deep. Trust me when I say that women do not enjoy extremely large penises as much as the porn would make you think. A dick slamming into your cervix is a real pain in the crotch.

You're fine, and within the standard deviation for nearly any scientific or self-reporting survey.

[hamtown]

ya yu sould be fine wiht that man, sure you will be able to make any partner happy :)

[Pichu]

There's a chance you'll grow a little bit more but honestly you're more then likely fully grown.

As other people have said, you're an ok size, pretty much within the average. You'll be fine.

[Muscleteen]

You can grow up to 21 or 22 but you are likely just about finished. :)

[dusman77]

You're average, and you're fine :) Don't worry about it.

[Scottydog]

Everyones different! Might grow and might not!

[CoDy_]

If you've been this size for a few years now, you most likely are done growing. But you never know. You will definitely be done growing by age 24.