Japan vs United States
Average erect penis size on fixed scales: 0–20 cm length, 0–16 cm girth.
Erect length
Fixed scale 0–20 cm
Japan
13.6 cm · 5.35 inIdentical
United States
13.6 cm · 5.35 inIdentical
Japan's average erect length matches United States's (13.6 cm).
Erect girth
Fixed scale 0–16 cm
Japan
11.5 cm · 4.53 in
United States
12.0 cm · 4.72 in+0.5 cm
United States's average erect girth exceeds Japan's by 0.5 cm.
Length is identical, United States leads in girth.
Where do you fit between Japan and United States?
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