How the conversion works
Add 1 to the UK size for the men's US size (12.5 + 1 = 13.5), then add 1.5 for the women's US size (15).
Sizes near 12.5
| UK size | Men's US | Women's US | UK | EU | Foot length (cm) |
|---|---|---|---|---|---|
| 11 | 12 | 13.5 | 11 | 45 | 30 |
| 11.5 | 12.5 | 14 | 11.5 | 45.5 | 30.5 |
| 12 | 13 | 14.5 | 12 | 46 | 31 |
| 12.5 | 13.5 | 15 | 12.5 | 46.5 | 31.5 |
| 13 | 14 | 15.5 | 13 | 47 | 32 |
| 13.5 | 14.5 | 16 | 13.5 | 47.5 | 32.5 |
| 14 | 15 | 16.5 | 14 | 48 | 33 |
Common questions
Does this work for every brand?
This site uses one standard set of rules, so size 12.5 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.