Japan to US Shoe Size
When the shoe box says JP/CM, use it as a printed size label; use a separate Heel-to-toe measurement row for a measured foot.
Label comparison, not a foot-length chart. JP/CM is a printed shoe size label; it is not the length of your foot measured with a ruler. For a measured foot length in cm or inches, open the footwear maker's separate Foot Length or Heel-to-toe chart to choose a size. The US/UK/EU references here are approximate and vary by brand.
| JP/CM shoe label | US Men | US Women | UK | EU |
|---|---|---|---|---|
| 22 | 4 | 5.5 | 3.5 | 36 |
| 22.5 | 4.5 | 6 | 4 | 36.5 |
| 23 | 5 | 6.5 | 4.5 | 37.5 |
| 23.5 | 5.5 | 7 | 5 | 38 |
| 24 | 6 | 7.5 | 5.5 | 38.5 |
| 24.5 | 6.5 | 8 | 6 | 39 |
| 25 | 7 | 8.5 | 6.5 | 40 |
| 25.5 | 7.5 | 9 | 7 | 40.5 |
| 26 | 8 | 9.5 | 7.5 | 41 |
| 26.5 | 8.5 | 10 | 8 | 42 |
| 27 | 9 | 10.5 | 8.5 | 42.5 |
| 27.5 | 9.5 | 11 | 9 | 43 |
| 28 | 10 | 11.5 | 9.5 | 44 |
| 28.5 | 10.5 | 12 | 10 | 44.5 |
| 29 | 11 | 12.5 | 10.5 | 45 |
| 29.5 | 11.5 | 13 | 11 | 45.5 |
| 30 | 12 | 13.5 | 11.5 | 46 |
Japan to US: distinguish JP shoe-label CM from measured foot length
Nike Japan's men's chart lists CM/JP label 27 → US Men's 9. Nike explicitly warns that centimeters printed on the shoe box can differ from the wearer's measured foot length, so a JP 27 label is not an instruction that every 27 cm foot needs US 9.
Use the chart for the actual maker and category. If the listing instead provides physical foot length, use its separate foot-length guidance rather than treating it as the product's CM/JP label.
How to use the general reference chart on this page
The table above compares approximate US men, US women, UK, EU and JP/CM printed shoe-label references. It does not provide a direct country-specific size column. The brand-specific example above supplies a checked local-label answer; confirm it against the actual product chart before buying.
Keep foot length measured from heel to longest toe separate from CM/JP or millimeter numbers printed as shoe size labels. Those may be different quantities even when both contain the unit cm or mm.
How this guidance is checked
These sources support the measurement method and help check real-world variation. They are not presented as one universal brand-size table.
- ISO 19407:2023 — Footwear — Sizing — Conversion of sizing systems — International Organization for Standardization (ISO). Measurement-first footwear methodology and the limitation that cross-system conversions are guidance rather than guaranteed fit.
- Men's Footwear Size Chart — Nike. Manufacturer cross-check showing that foot length, labeled CM values, width, and brand-specific sizing conventions are distinct concepts.
- Footwear Size Guide — adidas. Manufacturer cross-check across heel-to-toe length and US, UK, EU, and Japan-labeled footwear sizes.
- Men's footwear size chart — JP/CM and US — Nike Japan. CM/JP shoe-box label to US men row, explicitly distinguished from measured foot length.
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