What a personal question. There's no way I'd answer that in a public forum. The nerve of some people. (7.75" +/- 6)
http://vignette4.wikia.nocookie.net/southpark/images/0/02/ActualSizes.png/revision/latest?cb=20110520224938
Imagine the smallest and the biggest Gatorade bottle you've ever seen. Now imagine that's my penis. Now, my penis is that big.
I couldn’t even imagine being vain enough to hold a tape measure to my junk - especially when aroused lol! The shit some folks feel is important... J
When you're doing a push up? LOL Sorry. Had to. it depends on like the strength of said erection. I fall either just under or over 6 inches. Being almost 40, well it's usually the former. Whatcha gonna do. Does the job for the wife, so, yeah.