Mine is 3.75 inches hard
both below average size and too big for me at the same time.
A sorry 4 inches, and not so thick.
I never knew how to answer that question since I was not sure how to measure it until I googled the question. That said, I am 6 inches, but I think I am thicker than average.
pushing 8.25 inches hard. Most women that I've been with are more interested in thickness then length.
How big is yours?