Shoe size chart & converter
Enter a shoe size in any system below, or your foot length in centimetres if you've measured it, and the equivalent sizes in every other system are calculated instantly.
Result
- EU
- 40
- US Women's
- 9.5
- US Men's
- 8
- UK
- 7
- Foot length
- 26 cm
- China (mm)
- 260
Every shoe size system is ultimately a label for a foot-length range, which is why converting between them starts from length, not from one size number directly. The exception people run into most is between men’s and women’s US sizing for the same brand — the same physical shoe is often sold under two different size labels depending on which line it’s listed in.
China’s GB standard is the most literal of the four: the number on the box is simply the foot length in millimetres, so a 260 is built for a 26.0cm foot.
United Kingdom
UK sizing sits between the two systems most UK shoppers actually order from: US retailers (Amazon.com, US-only brands) and EU ones (Zalando, ASOS' EU warehouses since Brexit changed cross-border returns). A UK 6 shoe, a UK M ring and a UK 34C bra are each a different number again once the label says US or EU — which is why three-way conversion gets searched here more than in most single-market countries.
Every conversion on this page runs in your browser. Nothing you type is uploaded anywhere.
Frequently asked questions
How do I measure my foot length accurately?
Stand on a sheet of paper in the evening (feet swell slightly through the day), mark the tip of your longest toe and the back of your heel, then measure the distance in centimetres. Measure both feet — most people have one slightly larger foot — and size for the larger one.
Why do US men's and US women's sizes differ for the same foot length?
US women's sizing runs about 1.5 sizes larger in number than US men's for the same physical length — a men's 8 and a women's 9.5 fit roughly the same foot. This is a labelling convention, not a different measuring system.
Does this account for width, not just length?
No — this converter handles length only. Width (narrow/standard/wide) is a separate, brand-specific scale that this chart doesn't cover, which is also the most common reason a "correct" converted size still doesn't fit a particular shoe.
Last updated: 2026-09-10