Penis Size

Penis Size By age, the averages found were:

Age	Size
12	4.1" (104 mm)
13	5.1" (130 mm)
14	6.0" (152 mm)
15	6.1" (155 mm)
16	6.3" (160 mm)
17	6.5" (165 mm)
18	6.4" (163 mm)
19	6.2" (157 mm)
20	6.2" (157 mm)

By ethnicity (age 15 and over only):

Race	Size
Black	6.89" (175 mm)
Asian	5.33" (135 mm)
Caucasian	6.22" (158 mm)
Hispanic	6.15" (156 mm)
Native American	5.66" (144 mm)