US to Japan (JP) Shoe Size Conversion Chart

Q: Are US and Japanese shoe sizes the same?

No. Japanese sizes are in centimeters (foot length). A US 9 men's is typically JP 28 (about 27 cm foot length).

Q: How do I convert US shoe sizes to Japan?

Use the table on this page or the Shoe Size Converter. Conversions use a common centimeter (foot length) baseline.

Quick answer:

US to Japan (JP) shoe size conversion chart. Convert US sizes to Japanese cm-based sizes with table and links to each size pair.

US and Japanese (JP) shoe sizes use different systems. Japanese sizes are based on foot length in centimeters, so the numbers look different from US (e.g. US 9 men's ≈ JP 28). Converting correctly helps when buying from Japanese brands or Uniqlo, ASICS, and other JP-sized shoes. Our conversion uses a single centimeter (foot length) baseline: each size is mapped to a foot length in cm, and that cm value is matched to the closest size in the target system. The table below comes from the same dataset that powers the calculator. Each row links to a dedicated conversion page.

Conversion table (men's)

US	JP
6	25
6.5	25.5
7	26
7.5	26.5
8	27
8.5	27.5
9	28
9.5	28.5
10	29
10.5	29.5
11	30
11.5	30.5
12	31
12.5	31.5
13	32
13.5	32.5
14	33

FAQ

What is US size 9 in Japan?

US men's 9 converts to JP 28. US women's 9 converts to JP 27. Use the table or linked size pages for your gender.

Are US and Japanese shoe sizes the same?

No. Japanese sizes are in centimeters (foot length). US 9 men's is typically JP 28.

How do I convert US shoe sizes to Japan?

Use the table above or the Shoe Size Converter. Conversions use a common centimeter baseline.

Common questions

How should I use this converter?

Pick your region and size, then read the equivalents. When in doubt, measure in centimeters and compare to the brand chart.

Why do sizes differ between countries?

Each region uses its own scale; mapping through foot length (cm) reduces error.

More on US to Japan (JP) Shoe Size Conversion Chart

See linked guides on this site for measurement tips and regional differences.

Data sources

ISO and regional footwear sizing references (length-based mapping)
Published brand size charts (e.g. Nike, Adidas) for cross-checks—not endorsements
International measurement and apparel sizing studies (public summaries)

Why Sizes May Vary

Shoe and clothing sizes can vary between brands due to manufacturing differences, materials, and regional sizing standards.

Frequently Asked Questions

What is EU 42 in US shoe size?

EU 42 typically converts to US men's size 9 and US women's size 10.5, depending on brand and width. Use any converter on this page when available.

Are EU and US shoe sizes the same?

No. The EU sizing system and US shoe sizing scale use different scales. International shoe size conversion is most reliable when you anchor to foot length in cm.