UK to US shoe size converter
Choose a UK size for the UK to US answer and every other system, with a chart and worked examples.
UK to US at a glance
| UK | US / CA men's | US / CA women's |
|---|---|---|
| 2.5 | 3.5 | 5 |
| 3 | 4 | 5.5 |
| 3.5 | 4.5 | 6 |
| 4 | 5 | 6.5 |
| 4.5 | 5.5 | 7 |
| 5 | 6 | 7.5 |
| 5.5 | 6.5 | 8 |
| 6 | 7 | 8.5 |
| 6.5 | 7.5 | 9 |
| 7 | 8 | 9.5 |
| 7.5 | 8.5 | 10 |
| 8 (selected) | 9 | 10.5 |
| 8.5 | 9.5 | 11 |
| 9 | 10 | 11.5 |
| 9.5 | 10.5 | 12 |
| 10 | 11 | 12.5 |
| 10.5 | 11.5 | 13 |
| 11 | 12 | 13.5 |
| 11.5 | 12.5 | 14 |
| 12 | 13 | 14.5 |
| 12.5 | 13.5 | 15 |
Charts are a guide; brands vary by up to half a size. Measure your foot and check the brand’s own chart before you buy. How to measure your foot.
Going the other way? US to UK shoe size converter
UK to US examples
- UK 5 is a men's US 6 or a women's US 7.5.
- UK 7 is a men's US 8 or a women's US 9.5.
- UK 8 is a men's US 9 or a women's US 10.5.
- UK 9 is a men's US 10 or a women's US 11.5.
- UK 10 is a men's US 11 or a women's US 12.5.
Men's uk to us size chart
| UK | US / CA men's | EU | Foot / JP (cm) | Foot (in) |
|---|---|---|---|---|
| 5 | 6 | 38 | 23.7 | 9.33 |
| 5.5 | 6.5 | 38.5 | 24.1 | 9.50 |
| 6 | 7 | 39.5 | 24.6 | 9.67 |
| 6.5 | 7.5 | 40 | 25.0 | 9.83 |
| 7 | 8 | 40.5 | 25.4 | 10.00 |
| 7.5 | 8.5 | 41.5 | 25.8 | 10.17 |
| 8 (selected) | 9 | 42 | 26.2 | 10.33 |
| 8.5 | 9.5 | 42.5 | 26.7 | 10.50 |
| 9 | 10 | 43 | 27.1 | 10.67 |
| 9.5 | 10.5 | 44 | 27.5 | 10.83 |
| 10 | 11 | 44.5 | 27.9 | 11.00 |
| 10.5 | 11.5 | 45 | 28.4 | 11.17 |
| 11 | 12 | 45.5 | 28.8 | 11.33 |
| 11.5 | 12.5 | 46.5 | 29.2 | 11.50 |
| 12 | 13 | 47 | 29.6 | 11.67 |
| 12.5 | 13.5 | 47.5 | 30.1 | 11.83 |
| 13 | 14 | 48.5 | 30.5 | 12.00 |
| 13.5 | 14.5 | 49 | 30.9 | 12.17 |
| 14 | 15 | 49.5 | 31.3 | 12.33 |
Women's uk to us size chart
| UK | US / CA women's | EU | Foot / JP (cm) | Foot (in) |
|---|---|---|---|---|
| 1.5 | 4 | 33.5 | 20.7 | 8.17 |
| 2 | 4.5 | 34.5 | 21.2 | 8.33 |
| 2.5 | 5 | 35 | 21.6 | 8.50 |
| 3 | 5.5 | 35.5 | 22.0 | 8.67 |
| 3.5 | 6 | 36 | 22.4 | 8.83 |
| 4 | 6.5 | 37 | 22.9 | 9.00 |
| 4.5 | 7 | 37.5 | 23.3 | 9.17 |
| 5 | 7.5 | 38 | 23.7 | 9.33 |
| 5.5 | 8 | 38.5 | 24.1 | 9.50 |
| 6 | 8.5 | 39.5 | 24.6 | 9.67 |
| 6.5 | 9 | 40 | 25.0 | 9.83 |
| 7 | 9.5 | 40.5 | 25.4 | 10.00 |
| 7.5 | 10 | 41.5 | 25.8 | 10.17 |
| 8 | 10.5 | 42 | 26.2 | 10.33 |
| 8.5 | 11 | 42.5 | 26.7 | 10.50 |
| 9 | 11.5 | 43 | 27.1 | 10.67 |
| 9.5 | 12 | 44 | 27.5 | 10.83 |
| 10 | 12.5 | 44.5 | 27.9 | 11.00 |
| 10.5 | 13 | 45 | 28.4 | 11.17 |
How UK and US sizes relate
UK and US sizes both step by a third of an inch, so the conversion is a fixed offset rather than a formula. UK sizes are the same for men and women; on the usual chart convention you add 1 for a men’s US size and 2.5 for a women’s.
Not everyone uses those offsets. Some brands put men’s US sizes only half a size above UK, and some charts put women’s US sizes two sizes above UK, so check the brand’s own chart when a half size matters.
Width and between sizes
Length is only half of fit. US shoes are often sold in widths marked with letters. A common convention: men’s standard width is D, wide is 2E and extra wide is 4E; women’s standard is B and wide is D. Letters vary by brand, and many brands use words such as narrow, regular and wide instead.
If your measurement falls between two sizes:
- Measure late in the day, when feet are at their largest.
- Let the longer foot decide; most people have one foot slightly longer than the other.
- Think about the socks: thick hiking or winter socks take up more room than thin dress socks.
- Think about what the shoe is for. People often choose a little more room in athletic or hiking shoes than in dress shoes.
- If you can, try both sizes on and walk around before deciding.
Using a brand’s own chart
For a final answer, look up the official size chart on the brand’s own website, for the exact product line if it has one. Compare by foot length in centimeters rather than by size number: find the brand’s row for your measured foot length and read the size from there.
Size numbers don’t always mean the same length from one brand to the next. Some brands, particularly in sportswear, list EU sizes about half a size higher than generic charts like this one, and some use their own offsets between UK and US sizes. This page doesn’t guess any brand’s offsets; it shows one consistent reference chart.
More shoe size conversions
Full charts
Frequently asked questions
How do you convert UK to US shoe sizes?
On the usual chart convention, add 1 for men’s US and 2.5 for women’s US. A UK 8 is a men’s US 9 or a women’s US 10.5.
What US shoe size is UK 8?
UK 8 is a men's US 9 or a women's US 10.5. Sizes near it are in the chart on this page.
Is the UK to US conversion different for men and women?
Yes, because US sizes are split: a women’s US size is 1.5 higher than a men’s US size of the same length. That’s why this page has separate men’s and women’s charts. UK, EU and foot-length numbers are the same for both.
Why doesn’t my shoe brand match this chart?
Brands start from the same size systems but choose their own toe room and rounding, and some use different offsets between UK and US sizes. Differences of half a size are common. Measure your foot, then compare it with the foot lengths on the brand’s own chart.