International conversions Nov 6, 2026 3 min read
Shoe Size Conversion: US to Korea
Korean shoe sizing uses millimeters of foot length. US 9 men = 270 (270mm). Same as Japanese Mondopoint × 10.
The Chart
| US Men | Korea (mm) | US Women | Korea (mm) |
|---|---|---|---|
| 6 | 240 | 5 | 220 |
| 7 | 250 | 6 | 230 |
| 8 | 260 | 7 | 240 |
| 9 | 270 | 8 | 250 |
| 10 | 280 | 9 | 260 |
| 11 | 290 | 10 | 270 |
| 12 | 300 | 11 | 280 |
FAQs
Is Korean shoe sizing same as Japanese?
Same numbers, different units. Japan: 27 (cm). Korea: 270 (mm). Both refer to the same foot length. Convert by × 10 or ÷ 10.
K-pop style sneakers?
Korean sneaker brands and K-pop merch shoes use Korean mm sizing. Often runs slightly narrow vs Western brands. If between sizes, size up 5mm (e.g., 270 → 275).
Need this on your store?
Tailor Size Guide ships pre-built size charts for Shopify.