Does it seem big to you?

Well I always considered my penis size average but I recently measured my girth and was surprised by my result. I'm 18 with a length of 6.5 in. and girth of 5.25 in. I've been with a few girls before but never received any feedback from them on my size so I have no idea if I'm big or not. What do you people think? Thanks for the responses also.