What is the average penis size flacid? Erected?

Average penis size. Size varies considerably, especially flaccid length which varies with temperature. Caucasian men average length 3.5 inches flaccid & 5.4 inches erect Circumference flaccid 3.6 inches & 4.5 inches erect. My clinical experience has been that African Americans & Afro-Carribeans on average have larger penises than Caucasians & Asians have smaller ones. Journal of Sexual Medicine Vol 11, pgs 93-101.