Me and my best friend were comparing penis sizes and my penis is 6.7 inches long soft and 8.3 hard, my friend told me this is small, is that true?

Friend w/issues? Flaccid penis length is a poor predictor of erect (something about "showers" and "growers"), average male penis length is 5.1-5.9 inches per wikipedia, so you have nothing to worry about, and if friend is reporting much more than you, might need vision or ruler checked.