The Shoe Size Conversion tool converts adult shoe sizes between US, UK, EU, Japanese and Chinese systems from foot length.
| US/Canada men | 8 |
| US/Canada women | 9.5 |
| UK/India | 7.5 |
| EU | 40 |
| Japan/Mexico (cm) | 25.4 |
| China | 41 |
| Foot length | 10.00 in / 25.4 cm |
Stand on a sheet of paper with your heel against a wall, mark the tip of your longest toe and measure from the wall to the mark. Measure both feet in the evening, when feet are largest, and use the longer one.
US men's sizes run about 3 sizes per inch of foot length; women's sizes are about 1.5 sizes larger than men's for the same foot. UK sizes are about half a size smaller than US men's. EU sizes use Paris points (2/3 cm). Japanese sizes are the foot length in centimetres.
Worked example (defaults): a 10-inch (25.4 cm) foot is about a US men's 8, women's 9.5, UK 7.5, EU 40.
Brands and styles vary, so treat conversions as a starting point. Leave about a thumb's width (1 cm) in front of the longest toe. Width matters too; many brands offer narrow and wide fittings.
Do kids' sizes follow the same rules? No, children's and infant sizes have their own scales.
Is EU sizing the same everywhere in Europe? Mostly, with small brand differences.
What if I am between sizes? Choose the larger and adjust with insoles.