The scientific journal Personality and Individual Differences has recently published research on the average erect penis lengths of men around the world, and according to the study, the men of the Republic of Congo are the biggest at an average penis length of 18 cm.
By continent, African men were found to have the largest penises, while north-east Asians are the smallest.
The research was carried out by Dr Richard Lynn, Emeritus Professor of Psychology at Ulster University.
Here are a few of the average penis sizes by country in centimetres:
Republic of Congo, 18
South Africa 15.2
New Zealand 13.9
South Korea 9.6
North Korea 9.6
Source: target map
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