UK vs US Shoe Sizes - How They Compare
UK and US shoe sizes look similar but are offset by different amounts depending on whether you are shopping for men or women. For men, a US size is roughly half a size larger than the UK equivalent; for women, the US size is around two sizes larger than the UK size.
The mismatch trips up a lot of online orders, so the safest move is to know your UK size and convert it once - or measure your foot in centimetres and use that as the reference. The converter below is pre-set to UK 8 to get you started.
Convert a UK shoe size to US
Switch between the women's and men's tabs to see the different US offsets in action.
| System | US / CA | UK | EU | AU | JP (cm) | KR (mm) | CN | MX | Foot (cm) | Foot (in) |
|---|---|---|---|---|---|---|---|---|---|---|
| Your size |
Sizes are approximate and may vary by brand. Check the manufacturer's size chart before buying.
Women's UK to US shoe size
| UK | US | EU | Foot (cm) |
|---|---|---|---|
| 2 | 4 | 34 | 21.0 |
| 2.5 | 4.5 | 34-35 | 21.3 |
| 3 | 5 | 35 | 21.6 |
| 3.5 | 5.5 | 35-36 | 22.0 |
| 4 | 6 | 36 | 22.5 |
| 4.5 | 6.5 | 36-37 | 22.9 |
| 5 | 7 | 37 | 23.3 |
| 5.5 | 7.5 | 37-38 | 23.7 |
| 6 | 8 | 38 | 24.1 |
| 6.5 | 8.5 | 38-39 | 24.5 |
| 7 | 9 | 39 | 25.0 |
| 7.5 | 9.5 | 39-40 | 25.4 |
| 8 | 10 | 40 | 25.9 |
| 8.5 | 10.5 | 40-41 | 26.2 |
| 9 | 11 | 41 | 26.7 |
| 9.5 | 11.5 | 41-42 | 27.1 |
| 10 | 12 | 42 | 27.6 |
Men's UK to US shoe size
| UK | US | EU | Foot (cm) |
|---|---|---|---|
| 5.5 | 6 | 38-39 | 23.5 |
| 6 | 6.5 | 39 | 23.8 |
| 6.5 | 7 | 39-40 | 24.1 |
| 7 | 7.5 | 40 | 24.5 |
| 7.5 | 8 | 40-41 | 25.0 |
| 8 | 8.5 | 41 | 25.4 |
| 8.5 | 9 | 41-42 | 25.7 |
| 9 | 9.5 | 42 | 26.0 |
| 9.5 | 10 | 42-43 | 26.5 |
| 10 | 10.5 | 43 | 27.0 |
| 10.5 | 11 | 43-44 | 27.3 |
| 11 | 11.5 | 44 | 27.9 |
| 11.5 | 12 | 44-45 | 28.3 |
| 12 | 12.5 | 45 | 28.6 |
| 12.5 | 13 | 45-46 | 29.2 |
| 13.5 | 14 | 47 | 30.0 |
| 14.5 | 15 | 48 | 30.8 |
Frequently asked questions
How do I convert shoe sizes from UK to US?
For men's shoes, add 0.5 to the UK size. For women's shoes, add 2 to the UK size.
Are UK kids' shoe sizes the same as US kids' sizes?
No. UK kids' sizes run from roughly UK 0 to UK 13 in the little-kid range, then restart at UK 1 for big kids - and the equivalent US sizes are typically 1.5–2 sizes higher. Always cross-check using foot length in centimetres, which is the same on both sides.
Is a UK 8 men's shoe the same size as a UK 8 women's?
No. Men's and women's UK shoe sizes use different last shapes and different starting points, so the same number means a noticeably bigger foot in the men's range. A women's UK 8 is roughly equivalent to a men's UK 6.5.
Sizes are approximate and may vary by brand. Check the manufacturer's size chart before buying.