Shoe Size Converter · Practical guide
UK to US Shoe Size Conversion
US men's sizes run half a size above UK, and US women's run 2 sizes above — convert any size instantly above.
At a glance
The Conversion Rule
To convert a UK shoe size to US: add 0.5 for men's sizes and add 2 for women's sizes. A UK 8 becomes a US men's 8.5 or a US women's 10.
Interactive tool
Shoe Size Converter
Enter your own values, then compare the result with the examples below.
Size Chart
| US Men | US Women | UK | EU | CM |
|---|---|---|---|---|
| 6 | 7.5 | 5.5 | 39 | 24 |
| 7 | 8.5 | 6.5 | 40 | 25 |
| 8 | 9.5 | 7.5 | 41 | 26 |
| 9 | 10.5 | 8.5 | 42 | 27 |
| 10 | 11.5 | 9.5 | 43 | 28 |
| 11 | 12.5 | 10.5 | 44 | 29 |
| 12 | 13.5 | 11.5 | 45 | 30 |
| 13 | 14.5 | 12.5 | 46 | 31 |
Sizes are approximate. Always check manufacturer-specific sizing.
Why the Scales Differ
UK and US sizes both trace back to foot length, but the US scale starts numbering slightly higher. Under the hood, both convert to centimeters: a UK 8 matches a foot of about 26.5 cm, which is a US men's 8.5 and an EU 43. The converter above performs this through-centimeter conversion automatically for any size, including half sizes.
UK to US Conversion Chart
| UK | US Men | US Women | EU | CM |
|---|---|---|---|---|
| 6 | 6.5 | 8 | 39 | 24.5 |
| 7 | 7.5 | 9 | 41 | 25.5 |
| 8 | 8.5 | 10 | 43 | 26.5 |
| 9 | 9.5 | 11 | 45 | 27.5 |
| 10 | 10.5 | 12 | 47 | 28.5 |
Buying From UK Brands
When ordering from British brands or retailers, check whether the listed size is UK or US — many sites show both. And remember that conversions are approximate: a converted size gets you close, but brand-specific charts and customer reviews are the best guide to final fit.
Frequently Asked Questions
Is a UK 9 the same as a US 9?
No. A UK 9 is roughly a US men's 9.5 or a US women's 11. UK and US sizes are offset, so the same number is not the same size.
Do children's UK and US sizes differ too?
Yes, children's sizes also run about half a size apart, though kids' sizing varies more by brand. Measure the child's foot in centimeters for the most reliable result.
How do I convert EU sizes to UK?
The converter above handles it: a quick rule is that UK sizes are roughly 33 less than EU sizes — an EU 43 is about a UK 8.
Why do shoe brands list different conversions?
There is no single enforced standard, so some brands round conversions differently. Use the general rule as a starting point, then check the brand's own chart.