Welcome! I too am from Western Pennsylvania. I am just over 7" long by almost 6" around. Take a ruler and lay it on top of your hard cock with the end resting (not pushed into) your pubic bone. And where the tip of your cock is - that is how long you are. I think this is easiest and correct way to measure. If you measure along the side you will be bigger, but it is not your real size. Same with measureing underneath.
Then with a flexible tape measure, run it around your cock to see how thick it is. And there you go: your size! (if you don't have a flexible tape measure, take a string wrap it around your cock and then measure the string on the hard ruler).
Welcome to the group!