Convert between US, UK, EU, Chinese, Japanese, and Mondopoint shoe sizes.
Use the conversion as a starting point, then check the brand size guide. Shoe shape, width, and style can all affect real-world fit.
| US Men | UK | EU | CN | JP (cm) | Mondo (mm) |
|---|---|---|---|---|---|
| 7 | 6 | 39 | 39 | 25 | 250 |
| 8 | 7 | 41 | 41 | 26 | 260 |
| 9 | 8 | 42 | 42 | 27 | 270 |
| 10 | 9 | 43 | 43 | 28 | 280 |
| 11 | 10 | 44 | 44 | 29 | 290 |
| US Women | UK | EU | CN | JP (cm) | Mondo (mm) |
|---|---|---|---|---|---|
| 5 | 3 | 35 | 35 | 21.5 | 215 |
| 6 | 4 | 36.5 | 36.5 | 22.5 | 225 |
| 7 | 5 | 37.5 | 37.5 | 23.5 | 235 |
| 8 | 6 | 39 | 39 | 24.5 | 245 |
| 9 | 7 | 40 | 40 | 25.5 | 255 |
| US Kids | UK Kids | EU | CN | JP (cm) | Mondo (mm) |
|---|---|---|---|---|---|
| 10 | 9 | 27 | 27 | 16.5 | 165 |
| 11 | 10 | 28 | 28 | 17.5 | 175 |
| 12 | 11 | 29 | 29 | 18.5 | 185 |
| 13 | 12 | 31 | 31 | 19.5 | 195 |
Shoe sizing varies around the world, so converting between systems is useful when shopping online, comparing brands, or buying from overseas retailers.
For general background on shoe sizing systems, this overview may be useful.
Buying shoes across different regions can be confusing because sizing systems are not standardised worldwide. A US size, UK size, EU size, Japanese size, or Mondopoint measurement may all describe roughly the same fit in different ways.
This shoe size calculator helps convert between major international shoe size systems and provides reference charts for men's, women's, and kids' sizing.
Online shopping, international brands, and overseas marketplaces often list shoe sizes in a format that does not match the local system. Converting between systems helps narrow down the likely fit before ordering.
Different systems are built on different scales and assumptions. Some are based more directly on foot length, while others use historic sizing standards that vary by region.
The most reliable approach is to measure foot length and then compare it with the brand-specific chart. Conversions are useful, but actual fit also depends on:
Athletic shoes, boots, formal shoes, and children's shoes can all fit differently even when the nominal size is the same.
No. UK shoe sizes are usually about one size lower than the equivalent US men's size, though exact conversions can vary by brand and shoe type.
EU sizing generally uses one shared scale, unlike US sizing which usually has separate men's and women's size scales.
Mondopoint is a sizing system based on actual foot length in millimetres. It is often considered one of the more direct and measurement-based systems.
Brands use different lasts, shape profiles, and fit preferences, so a converted size is a strong guide but not always an exact guaranteed fit.
Measure foot length, compare against the brand chart where possible, and use conversions as a starting point rather than the only sizing reference.
For connected measurements, see the Length Converter, Steps to Miles Calculator, and Weight Converter.
A shoe size conversion tool is most useful as a first-pass reference. For the best result, compare the converted size with the brand's own chart and, where possible, actual foot measurements.