Shoe Size Conversion

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

Runs in your browser — nothing is sent or saved.

How to use the shoe size conversion

  1. Choose men's or women's sizing.
  2. Pick the system you know: US, UK, EU, or CM.
  3. Enter your size.
  4. Read the equivalents in the other systems.

Converting shoe sizes

Shoe sizes are numbered differently around the world, which makes buying from another country confusing. This shoe size conversion, a shoe size converter and shoe size chart in one, matches your size to the nearest row and shows the US, UK, EU, and centimetre equivalents together, so a US to EU shoe size or any other pairing is one step, and reading an EU shoe size from a US number is easy. It covers both men's and women's sizing, which run on different scales, so pick the right one first.

Sizes vary by brand

The single most important thing to know is that shoe sizes are not standardised. Two brands can label the same physical shoe a half-size apart, and fit differs between styles even within one brand. So treat any conversion, including this one, as a starting point rather than a guarantee. When you can, check the specific brand's own size chart, and read reviews for notes on whether a style runs large or small.

Foot length is the reliable anchor

The most dependable measure is the length of your foot in centimetres, since it does not depend on a brand's labelling. Stand on a piece of paper, mark your heel and longest toe, and measure the distance. Match that centimetre figure to the chart and you have the best starting size. Measure both feet, since they often differ, and use the larger one.

A worked example

A men's US 9 is a UK 8.5 and an EU 42.5, with a foot length of about 26.7 cm. A women's US 8 is a UK 6 and an EU 38.5, about 24.1 cm. Enter your own size to see the full row.

FAQ

How do I convert US shoe size to EU?

Choose your gender, select US, and enter your size; the tool shows the EU equivalent. For men, a US 9 is roughly an EU 42.5. Sizes vary by brand, so confirm with the maker's chart.

How do I convert UK to US shoe sizes?

Select UK and enter your size. For men, UK sizes are usually about half a size below US; a UK 8.5 is around a US 9. The tool shows the exact chart row.

Why do shoe sizes vary so much?

There is no strict international standard, so brands and styles label sizes differently. That is why the same number can fit differently, and why measuring your foot in centimetres is more reliable.

How do I measure my foot length?

Stand on paper, mark your heel and longest toe, and measure between them in centimetres. Do both feet and use the larger. Match that number to the chart.

Is my information private?

Yes. Everything is calculated in your browser and nothing you enter is uploaded or saved.