Korean Shoe Sizes Explained
Korean shoe sizing is a Mondopoint system: the number on the label is your foot length in millimetres. It is unisex, with no offset between men's and women's scales - KR 250 means a 250mm foot for everyone.
That mm-precision is why Korean and Japanese athletic brands are so popular for people who fall between half-sizes elsewhere. Use the converter below - pre-set to KR 240 - to translate any Korean size into US, UK, EU and more.
Convert a Korean shoe size
Pre-set to KR 240. Change the value, the system, or the gender tab to convert any KR size.
| 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 Korean shoe size conversion
| KR | US | UK | EU | Foot (cm) |
|---|---|---|---|---|
| 210 | 4 | 2 | 34 | 21.0 |
| 215 | 4.5 | 2.5 | 34-35 | 21.3 |
| 220 | 5 | 3 | 35 | 21.6 |
| 225 | 5.5 | 3.5 | 35-36 | 22.0 |
| 230 | 6 | 4 | 36 | 22.5 |
| 235 | 6.5 | 4.5 | 36-37 | 22.9 |
| 235 | 7 | 5 | 37 | 23.3 |
| 240 | 7.5 | 5.5 | 37-38 | 23.7 |
| 245 | 8 | 6 | 38 | 24.1 |
| 250 | 8.5 | 6.5 | 38-39 | 24.5 |
| 255 | 9 | 7 | 39 | 25.0 |
| 260 | 9.5 | 7.5 | 39-40 | 25.4 |
| 260 | 10 | 8 | 40 | 25.9 |
| 265 | 10.5 | 8.5 | 40-41 | 26.2 |
| 270 | 11 | 9 | 41 | 26.7 |
| 275 | 11.5 | 9.5 | 41-42 | 27.1 |
| 280 | 12 | 10 | 42 | 27.6 |
Frequently asked questions
What is KR 250 in US shoe size?
KR 250 is roughly US men's 7 and US women's 8. KR sizes anchor directly to foot length in millimetres (250mm = 25cm), so the US equivalent can shift half a size depending on the brand's last shape.
Why are Korean shoe sizes in millimetres?
Korean shoe sizing follows the Mondopoint standard, an ISO system designed to remove ambiguity by labelling shoes with the actual foot length they fit. Korea, along with most of Asian athletic manufacturing, adopted Mondopoint in millimetres because mm gives finer precision than centimetres - a 5mm increment is small enough to capture half-sizes without decimals on the label.
Are Korean and Japanese shoe sizes the same?
They use the same underlying idea - both label shoes by foot length - but in different units. Korean sizes are in millimetres (KR 240) and Japanese sizes are in centimetres (JP 24). KR 240 and JP 24 refer to the same foot, just expressed differently.
Sizes are approximate and may vary by brand. Check the manufacturer's size chart before buying.