We've talked about the length of the penis in its ordinary non-erect state, but how long is it be when it's erect?The man whose non-erect penis is smallish will usually achieve about a 100 per cent increase in length during sexual excitement.
The man whose non-erect penis is on the largish size will probably manage about a 75 per cent increase.
So you can see that even if a man has got a 'small' penis, he's got a built-in compensating factor that will bring him up to about the same size as the guy who appears to be 'better equipped' in the shower room.
As we've already said, the average penis is now known to be appreciably shorter than was traditionally thought. Most authorities now say that the mean length of the erect male organ is between 5.1 inches (12.9 centimetres) and 5.9 inches (15 centimetres).
One of the most accurate and scientific pieces of research on this subject was carried out in Mexico behalf of LifeStyles condoms. Under the supervision of a doctor, four trained health professionals measured the erect penises of 300 men (who were mostly young Americans).
They found that the average length was 5.877 inches (14.93 centimetres) – far less than the figure which had been generally quoted in the past.
A review published in the British Journal of Urology in 2007 broadly confirmed this finding.
