This is a study that was conducted to see what is an average penis size from different countries. The number from this study took over a year to acquire. They were gathered from various journals and studies from around the world.
United States - 5″
Germany - 5.6″
Spain - 5.3
France - 6.2″
Japan - 5.1″
Brazil - 4.8″
Italy - 5.9″
Venezuela - 5″
Mexico - 5.9″
Greece - 4.8″
India - 4″
Saudi Arabia - 4.9″
Chile - 5.5″
Columbia - 5.4″
As you can see here, there is a diverse average penis size among the different countries. Although there is no way to know the exact average penis size for everyone, this is a close approximation. If the study was done on a different control group, the average would certainly be a little different. So what is an average penis size? About 5.2″