OP you seriously have to give a measurement here to get an accurate response.
For example I always presumed mine was average if not slightly smaller than average. I then started having instances where size was an issue for the odd girl, comments and compliments in the bedroom and finally one girl shouting out at a pre-drinking session that she heard I had a big dick.
While it's hardly massive or huge, both in times of girth and length, after doing some fairly easy to do research online I found out I am larger than normal, although only by just over an inch or two (depending on the study you look at).