Different scales
US, UK, EU, and JP labels rarely describe the same foot length in millimeters.
US to Japan Shoe Size Converter
Convert US shoe sizes to Japan instantly. Enter your US size above to see Japan and all other regional equivalents.
Results update automatically as you select options
Converted Sizes
Quick Converters
Shoe Size Converter
Convert shoe sizes between US, UK, EU, Japan, China, and CM.
Clothing Size Converter
Convert clothing sizes for tops, pants, and dresses across regions.
CM to US Shoe Size
Convert foot length in centimeters to US shoe sizes.
US to EU Size
Convert US sizes to European sizing standards.
UK to US Size
Convert UK sizes to US equivalents.
EU to US Size
Convert European sizes to US sizing.
Mattress Size Chart
Compare mattress sizes across US, UK, and EU.
Measurement Tools
Explore unit conversions and measurement standards.
Conversion Guide
Use the converter above to convert any US shoe size to Japan. Results also show UK, Japan, China, and CM equivalents. Fit can vary by brand; check the brand's size chart when possible.
Understanding This Conversion
Understand how shoe sizing systems work across US, UK, EU, Japan, and CM. Educational guide with conversion references.
For more detail, read our guides on regional differences, how to measure your feet, and common sizing mistakes.
Fit Guide
Fit can vary by brand and style:
- European brands often run slightly narrower; consider half a size up if you have wide feet.
- US and UK sizes may offer more width options (N, M, W).
- Asian sizing (JP/CN) typically runs smaller—sizing up is common when converting from US or Japan.
When in doubt, check the brand's size chart or order two sizes and return one.
How to Measure Your Foot
Measure your foot length in centimeters for the most accurate conversion:
- Place a piece of paper against a wall on a hard floor.
- Stand with your heel touching the wall and mark the tip of your longest toe.
- Measure from the wall to the mark in centimeters.
- Repeat for both feet and use the larger measurement.
Foot length in CM is the most reliable reference across all regional sizing systems.
Fit and sizing explained
Fit Problems Explained
Step-by-step guide to measuring foot length in centimeters for accurate shoe size conversion. Avoid common shoe sizing mistakes when converting between regions. Fit tips and conversion best practices.
How to Measure Your Feet in CM · Common Shoe Sizing Mistakes
Why Sizes Vary
Understand how shoe sizing systems work across US, UK, EU, Japan, and CM. Educational guide with conversion references. Avoid common shoe sizing mistakes when converting between regions. Fit tips and conversion best practices.
Brand Differences
Brands use different lasts and fit models. Nike often runs small; Adidas and Puma can differ by style. Always check the brand's size chart before ordering.
Regional Differences
Why European and US shoe sizes use different scales. Regional differences and conversion explained. How Japanese shoe sizing works and how to convert to US, EU, and UK. Japan size chart explained. How UK shoe sizes differ from US and EU. Conversion and regional comparison guide.
Why EU and US Shoe Sizes Differ · How Japanese Shoe Sizes Work · How UK Shoe Sizes Differ From US and EU
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- EU to US Shoe Size
- US to EU Shoe Size
- US to UK Shoe Size
- UK to US Shoe Size
- EU to UK Shoe Size
- Japan to US Shoe Size
- CM to US Shoe Size
- US 6 to Japan
- US 6.5 to Japan
- US 7 to Japan
- US 7.5 to Japan
- US 8 to Japan
- US 8.5 to Japan
- CM 24 to EU
- CM 24.5 to EU
- CM 25 to EU
- CM 25.5 to EU
- CM 26 to EU
- CM 26.5 to EU
- CM 27 to EU
- CM 27.5 to EU
- CM 28 to EU
- CM 28.5 to EU
- CM 29 to EU
- CM 29.5 to EU
- CM 30 to EU
- CM 30.5 to EU
- CM 31 to EU
- CM 31.5 to EU
- CM 32 to EU
- CM 24.5 to US
- CM 25 to US
- CM 25.5 to US
- CM 26 to US
- CM 26.5 to US
- CM 27 to US
- CM 27.5 to US
- CM 28 to US
- CM 28.5 to US
Regional & conversion pages
Frequently Asked Questions
How do I convert US shoe sizes to Japan?
Use the converter above. Select your gender, choose US as the source region, enter your size, and view Japan and other regional equivalents.
Is US sizing different from Japan?
Yes. Each region uses its own scale. US and Japan conversion is approximate; always check the brand's size chart when possible.
Are shoe sizes standardized?
No. Shoe sizes vary by country and brand. Conversion charts give approximate equivalents.
Should I size up or down?
It depends on the brand. European and Asian brands often run smaller. Consider sizing up for athletic shoes or wide feet.
Related Size Conversions
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Explore more
Why sizes don’t line up everywhere
Brand lasts
Two brands can label the same length differently based on shape and materials.
Use centimeters
Measuring both feet in cm is the most reliable way to cross-check any chart.