A US men’s 10 is about a UK 9, a US women’s 11.5 and an EU 43, for a foot about 27 cm long.
How the shoe size converter works
ShoeSizeChart converts through foot length. US men’s sizes follow the Brannock scale: size = 3 × foot length in inches − 22, so each size is a third of an inch. US women’s sizes are 1.5 higher for the same foot, and UK sizes one lower than US men’s. European sizes are counted in Paris points of two thirds of a centimetre and include about 1.5 cm of toe room: EU = 1.5 × (foot length in cm + 1.5). Mondopoint, used in Japan and for ski boots, is the foot length itself. Results are rounded to the nearest half size.
Adult shoe size chart
| US men | US women | UK | EU | Foot cm | Foot in |
|---|---|---|---|---|---|
| 6 | 7.5 | 5 | 38 | 23.5 | 9.33 |
| 6.5 | 8 | 5.5 | 38.5 | 24 | 9.50 |
| 7 | 8.5 | 6 | 39 | 24.5 | 9.67 |
| 7.5 | 9 | 6.5 | 39.5 | 25 | 9.83 |
| 8 | 9.5 | 7 | 40.5 | 25.5 | 10.00 |
| 8.5 | 10 | 7.5 | 41 | 26 | 10.17 |
| 9 | 10.5 | 8 | 41.5 | 26 | 10.33 |
| 9.5 | 11 | 8.5 | 42.5 | 26.5 | 10.50 |
| 10 | 11.5 | 9 | 43 | 27 | 10.67 |
| 10.5 | 12 | 9.5 | 43.5 | 27.5 | 10.83 |
| 11 | 12.5 | 10 | 44 | 28 | 11.00 |
| 11.5 | 13 | 10.5 | 45 | 28.5 | 11.17 |
| 12 | 13.5 | 11 | 45.5 | 29 | 11.33 |
| 12.5 | 14 | 11.5 | 46 | 29 | 11.50 |
| 13 | 14.5 | 12 | 46.5 | 29.5 | 11.67 |
| 13.5 | 15 | 12.5 | 47.5 | 30 | 11.83 |
| 14 | 15.5 | 13 | 48 | 30.5 | 12.00 |
Brands use their own lasts and charts, so sizes can differ by half to a full size, and width (narrow, regular, wide) is separate from length. Try shoes on or check the brand’s chart and return policy. Children’s sizes are not covered.
Frequently asked questions
How do shoe sizes convert between countries?
Each system measures foot or last length in a different unit: US and UK use a third of an inch per size, EU uses two thirds of a centimetre, and Japan uses centimetres.
Why does my size differ between brands?
Brands use different lasts and their own charts, so the same nominal size can vary by up to a full size. Use this as a starting point.
Does this cover children’s sizes?
No, only adult sizes. Children’s scales restart at different points.
Is ShoeSizeChart free?
Yes, with no sign-up or ads.
Are my sizes saved?
Yes, in this browser only.