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Is a men's size 15 shoe big?

A US men's size 15 fits a foot of about 30.5 cm (12.0 in), longer than over 99% of men's feet. In EU sizing that is 47, in UK 14.5.

Percentile
>99%
of men have smaller feet than a men's 15
US men's 15 = 30.5 cm

US men's 15 by group

Foot length

Share of adults with feet shorter than 30.5 cm
GroupMeanSmaller than you1 in X
Men (about US men's 10.5)26.5 cm>99%1 in 931
Women (about US women's 8.5)24.0 cm>99%under 1 in 10,000

The same foot in other systems

Same conversion as the shoe size test; brands differ by up to half a size
SystemSize
US men's15
US women's16
UK14.5
EU47
Foot length30.5 cm
Foot length12.0 in

Percentile is the share of the group with shorter feet than this size fits. “1 in X” counts the rarer side: people at or beyond this value above the median, at or under it below. The size is converted to foot length in cm, then compared with a normal distribution of foot lengths.

What this means

  • The average man's foot is 26.5 cm, about a US men's 10.5. The average woman's is 24.0 cm, about a US women's 8.5. A men's 15 is 4.0 cm longer than the men's mean.
  • Measured against women, the same foot is longer than over 99% of them. In US women's sizing it is about 16.
  • Stock thins out fast above the mean plus two SDs. Being this rare has a cost, and it is measured in shipping fees.

Questions

Is a men's size 15 big?
A US men's 15 fits a foot of about 30.5 cm, which is longer than over 99% of men's feet. That is a big foot. Shops stock few pairs this size, and online filters know you by name.
What is a US men's 15 in EU and UK sizes?
A US men's 15 is about EU 47 and UK 14.5, for a foot of 30.5 cm (12.0 in). In US women's sizing the same foot is about 16. Brands round differently, so try before you trust.
How rare is a size 15 foot?
About 1 in 931 men have feet this long or longer. Among women it is under 1 in 10,000.

Source: Foot length distributions: Jurca et al., Footwear Science 2019; Wunderlich and Cavanagh, Med Sci Sports Exerc 2001. Sizes converted with the same formula as our shoe size test. Percentiles on this page are our estimate from a normal distribution with the stated mean and SD.

Pick EU, US or UK, slide to your size, see the percentile.

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