Erect. You can never judge penis size while flaccid. A nine inch demon can hide inside of a 2 inch flaccid cock. The change in size is completely random. There is even a term for this: Showers and growers. Growers have dicks that grow to reach their full size while showers have big dicks at all times (Except when it's cold), however, they don't grow much if at all.
And I have no idea what to do with this information