How the conversion works
Add 1 to the UK size for the men's US size (8.5 + 1 = 9.5), then add 1.5 for the women's US size (11).
Sizes near 8.5
| UK size | Men's US | Women's US | UK | EU | Foot length (cm) |
|---|---|---|---|---|---|
| 7 | 8 | 9.5 | 7 | 41 | 26 |
| 7.5 | 8.5 | 10 | 7.5 | 41.5 | 26.5 |
| 8 | 9 | 10.5 | 8 | 42 | 27 |
| 8.5 | 9.5 | 11 | 8.5 | 42.5 | 27.5 |
| 9 | 10 | 11.5 | 9 | 43 | 28 |
| 9.5 | 10.5 | 12 | 9.5 | 43.5 | 28.5 |
| 10 | 11 | 12.5 | 10 | 44 | 29 |
Common questions
Does this work for every brand?
This site uses one standard set of rules, so size 8.5 is a guide, not a guarantee. Brands often differ by half a size or a full size, especially between men's and women's lines. Check the maker's own chart when you can.
How do I measure my foot?
Stand on a sheet of paper, mark your heel and your longest toe, then measure the gap in centimetres. Match it to the foot length column and pick the closest size.
What if I am between sizes?
Order the larger size, unless the brand says its shoes run large. Add a thin sock allowance if you wear thick socks.
Other sizes
See the full uk to us shoe size chart or read how we convert.