THE internet is full of useful information, much of it unverified but eyebrow-raising.

And the latest addition to this genre is a table of the average penis size by country.

The data, which says it is a mix of stated and undefined sources, has some ego-shattering information for Australian men if it is to be believed.

Australia comes in 94th on the list, with a "measured" average penis size of 13.2cm.

The information is attributed to "Australia's national agency for health and welfare".

Number one on the list is the Congo, with an average "self-reported" penis size of 18cm.

Rounding out the top five are Ecuador at 17.5cm (measured), Ghana at 17.3 cm (self-reported), Colombia at 17cm (measured) and Venezuela at 17cm (measured).

news.com.au could not independently verify the information in the table.

Originally published as World penis map a web sensation