I'm 13 my penis size is 3in when it's in a boner it's 4.7in how long will it take to get bigger and will it be bigger in the future because I want it bigger and I now it doesn't matter at this age but I want it bigger
Hi Adam,
Your penis can grow into your early 20's.
FYI, average for an adult male is 5 - 5 1/2". You are close. How much your penis can grow is all up to your DNA. You can't change it.
Good luck.