I've heard that foot size is linked to the size of a man's penis.

Is there any truth to this?

  • Does this mean for people of the same height but different foot size, or just for someone who's 6ft against 5 ft? Taller people are likely to have bigger body parts in general (I'd guess but not offering evidence here), but a specific correlation to shoe size seems less likely?
    – Stuart F
    Sep 20, 2022 at 10:35

1 Answer 1


From the Wikipedia article on human penis size:

There is evidence both for and against a link between penis size and the size of other body parts. One study found a weak correlation between the size of the stretched penis and foot size and height. Another investigation failed to find any evidence for a link between shoe size and stretched penis size.

A potential explanation for a link is that the development of the penis in an embryo is controlled by some of the same Hox genes (in particular HOXA13 and HOXD13) as those that control the development of the limbs. Mutations of some Hox genes that control the growth of limbs cause malformed genitalia (Hand-Foot-Genital Syndrome).

The paper Wikipedia cites for a positive correlation is this one. But the abstract of that paper has some key points which differ slightly from what's mentioned on Wikipedia. Mainly,

Penile length was found to be statistically related to both body height and foot length, but with weak correlation coefficients


Height and foot size would not serve as practical estimators of penis length.

  • 1
    in other words there's in theory something there but in reality it doesn't work out?
    – jwenting
    Jun 27, 2011 at 6:31
  • @jwenting: looks like that Jun 27, 2011 at 8:17
  • 1
    @Hendy: Big feet ==> big penis does not mean little feet ==> little penis; so that is not an exception :) Jun 28, 2011 at 23:12
  • 1
    @Hendy: You didn't show an instance of "if P then ~Q," you showed an instance where "if ~P then Q" Jun 29, 2011 at 1:20
  • 2
    From that paper: "Foot length and body height (Table 1) were moderately correlated (r = 0.66; p < .10-6). Penis length had a statistically significant relationship to height, although the correlation was relatively weak (r = 0.26; P < 0.05). The relationship between penis length and foot length was also statistically significant, with a similar correlation of r -- 0.27 (p < 0.02)." Totally looks to me like bigger people have bigger body parts. An N of 63 seems pretty low for this.
    – User65535
    Sep 16, 2022 at 20:46

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