To establish if the 'myth' about whether the size of a man's penis can be estimated from his shoe size has any basis, in fact. Two urologists measured the stretched penile length of 104 men in a prospective study and related this to their shoe size. The median stretched penile length for the sampled population was 13 cm and the median UK shoe size was 9 (European 43). There was no statistically significant correlation between shoe size and stretched penile length.
The supposed association of penile length and shoe size has no scientific basis.
Can shoe size predict penile length?