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ToolWrenConvert shoe sizes between US, UK and EU systems. Handy when buying shoes from international stores.
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Shoe Size is a free, private online tool that lets you convert shoe sizes between US, UK and EU systems (approximate men's sizing). It runs entirely in your browser, so nothing you enter is uploaded to a server.
Privacy: this tool runs entirely in your browser. Your input is never sent to, received by, or stored on any server — there are no uploads and no tracking of what you enter.
US, UK and EU each number shoes differently. US and UK differ by about one size; EU uses a separate Paris-point scale.
These are approximate men's conversions. Sizing varies by brand and style, so always check the maker's chart when possible.
Online shopping from international retailers and understanding size labels on imported shoes.
There is no single global shoe-size standard. The US, UK and EU systems each number shoes differently, and they were built on different base measurements, so a size that means one thing in London means another in New York or Paris. This converter gives an approximate translation between the three.
US and UK sizes are close but offset by roughly one size (a US men's size is about one number higher than the UK equivalent). The EU system uses 'Paris points' — a different scale entirely based on roughly two-thirds of a centimetre per size — so EU numbers are much larger (a US 9 is around EU 42–43).
Shoe sizing is notoriously inconsistent even within one system, because brands, lasts and styles vary. Two pairs labelled the same size can fit differently. This tool uses standard men's conversion relationships as a guide, but you should always check the manufacturer's own size chart and, where possible, the measured foot length in centimetres.
The most reliable approach is to measure your foot length in centimetres and match it to a brand's chart, since that sidesteps the system mismatch entirely. Women's conversions also differ from men's by roughly 1.5 sizes between US and UK, so note which sizing a chart refers to.
Use it when shopping from international retailers, deciphering size labels on imported shoes, or buying gifts from another country. Treat the result as a starting point and confirm with the seller's chart. It runs entirely in your browser.