US to Korea Men's Shoe Size Conversion
| US | Korea (mm) |
|---|---|
| 7 | 250 |
| 7.5 | 255 |
| 8 | 260 |
| 8.5 | 265 |
| 9 | 270 |
| 9.5 | 275 |
| 10 | 280 |
| 10.5 | 285 |
| 11 | 290 |
| 11.5 | 295 |
| 12 | 300 |
Sizing conventions vary by brand and by cut — this table shows the standard published conversion. Always check the garment's own size chart when one is available. See how these tables are compiled.
South Korea sizes men's shoes in millimetres of foot length rather than a numbered scale, so a US 9 (the standard chart's midpoint) converts to 270mm — the same literal-length approach used in Japan but expressed as bare millimetres rather than centimetres.
Because Korean sizing is a direct length figure, the safest way to buy from a Korean retailer is to measure your actual foot length in millimetres rather than relying on the US-size lookup, which only holds if your foot matches the shoe's assumed average width for that length.
Frequently asked questions
Is Korean shoe sizing the same idea as Japanese sizing?
Yes — both are literal foot-length measurements rather than a numbered scale, just expressed in different units (Japan in cm, Korea in mm). A US-size lookup is a rough guide; your measured foot length is the reliable number.