I have always been a late developer in every way, but i'm now afraid that my penis wont grow at all and that i have reached my final size. I am 17, my voice broke about 1 and a half years ago, I grew pubic hair at the age of 13 and have tonnes of it. I had a growth spurt at the age of 16, and i feel that my penis hasnt grown since i was little. I have little-to-no facial hair, so im hoping that im still going through puberty but im not sure anymore.
Hi Harvy,
Your penis can grow into your early 20's. Facial and body hair often continue to develop later too.
Average for an adult male is 5.1" erect.
Hope it helps.