Shoe Size Converter
Convert shoe sizes between US, UK, EU, JP and CN — men, women and kids.
Shoe sizing differs across regions. This tool converts between the four most common systems using standard charts.
How to use
- Pick Men, Women, or Kids.
- Choose the size system you know (US, UK, EU, or JP/CM).
- Type the size — all other systems show instantly.
About this tool
All conversion happens in your browser — no data is sent anywhere.
How it works
Shoe sizing runs on three different rulers. The EU uses the Paris point: each size is ⅔ cm, so EU size ≈ foot length in cm × 1.5. The US and UK use the barleycorn (⅓ inch per size) from different zero points, which is why US men’s runs exactly 1 above UK men’s. Mondopoint — used in Japan and China — skips the games and prints foot length in millimetres directly.
The handy cross-links: US women’s ≈ US men’s + 1.5, and EU ≈ (US men’s + 31) within half a size for the common range. None of this is exact across brands — lasts differ, and that is why trying on still matters.
Measure in the evening, when feet are slightly swollen, standing with weight on the foot. Leave about a thumb’s width (∼1 cm) ahead of your longest toe; if you are between sizes in athletic shoes, most fitters say go up.
Worked examples
27 cm foot: Foot measures 27.0 cm standing. That is about EU 41, US men’s 9, UK 8, JP 27.0 — then check the brand’s chart, since Nike and Adidas size differently.
US women’s 8: US W8 ≈ 24.1 cm → EU 38.5, UK 6. Ordering EU shoes: 38.5 is often rounded to 39, so compare centimetres, not the size number.
Quick reference
| US Men | UK | EU | Foot (cm) |
|---|---|---|---|
| 7 | 6 | 40 | 25.0 |
| 8 | 7 | 41 | 25.7 |
| 9 | 8 | 42.5 | 26.7 |
| 10 | 9 | 44 | 27.9 |
| 11 | 10 | 45 | 28.6 |
| 12 | 11 | 46 | 29.6 |
| US Women | UK | EU | Foot (cm) |
|---|---|---|---|
| 6 | 4 | 36.5 | 23.0 |
| 7 | 5 | 37.5 | 23.5 |
| 8 | 6 | 38.5 | 24.1 |
| 9 | 7 | 40 | 25.1 |
| 10 | 8 | 41 | 25.9 |
Frequently asked questions
Why does my size differ from the brand’s chart?
Manufacturers use slightly different lasts and measuring methods. This tool uses standard conversion charts; always check the brand’s own guide for critical purchases.
What does JP / CN (cm) mean?
Japanese and Chinese sizes are based on foot length in centimeters, so a JP 27 means a 27 cm foot.
Are kids’ sizes the same everywhere?
Kids’ sizing varies more than adult sizing. Use this as a starting point and measure the child’s foot.
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