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Shoe Size Converter

Convert shoe sizes between EU, UK, US men, US women, US kids, centimetres and Mondopoint.

Convert shoe sizes

EU: —
UK: —
US men: — · US women: —
US kids: —
Foot length: — cm · Mondopoint: — mm
Half sizes move about 6.7 mm. Lasts differ between brands, so treat the table as a guide.

How to use the Shoe Size Converter

  1. Choose the size system you already know, such as EU or UK.
  2. Type your size, including a half size if you have one.
  3. Read the equivalent sizes in every other system plus the foot length.

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Frequently Asked Questions

Common questions about the free online shoe size converter.

Pick the system you know, type the size, and the tool shows the matching size in every other system plus the foot length.
Mondopoint is an international standard that labels footwear with the foot length in millimetres, so a size 270 fits a 27 cm foot.
One half size is roughly 6.7 millimetres, or about a third of a centimetre, which is why half sizes matter for a snug fit.
Each brand builds its shoes on a slightly different last, so a 42 from one maker can feel tighter than a 42 from another.
Stand on paper, mark the heel and the longest toe, then measure the distance in centimetres and compare it with the foot length column.
Many runners add half a size to allow for swelling and toe room during longer runs, especially for long distance training.
No. US women sizes run about 1.5 sizes above US men, so a men size 8 is close to a women size 9.5.
Yes. The shoe size converter is completely free, works offline in your browser and needs no account or sign-up at all.

Last updated: October 10, 2026