Shoe Size Converter
Convert shoe sizes between US, UK, EU, and foot length in cm. Covers men, women, and kids, so you always order the right size.
Find your size
Full men's size chart
| US | UK | EU | CM |
|---|---|---|---|
| 6 | 5.5 | 38.5 | 24.1 |
| 6.5 | 6 | 39 | 24.4 |
| 7 | 6.5 | 40 | 24.8 |
| 7.5 | 7 | 40.5 | 25.1 |
| 8 | 7.5 | 41 | 25.4 |
| 8.5 | 8 | 42 | 25.7 |
| 9 | 8.5 | 42.5 | 26.0 |
| 9.5 | 9 | 43 | 26.7 |
| 10 | 9.5 | 44 | 27.0 |
| 10.5 | 10 | 44.5 | 27.3 |
| 11 | 10.5 | 45 | 27.9 |
| 11.5 | 11 | 45.5 | 28.3 |
| 12 | 11.5 | 46 | 28.6 |
| 13 | 12.5 | 47 | 29.4 |
| 14 | 13.5 | 48 | 30.2 |
| 15 | 14.5 | 49 | 31.0 |
Brand sizing notes
Nike
Runs true to size. Wide-foot options available (2E).
Adidas
Runs slightly narrow. Consider going half size up.
New Balance
Runs true to size. Best wide-fit range (2E, 4E, 6E).
Converse
Runs 1–1.5 sizes large. Size down.
Vans
Runs true to size for most styles.
Birkenstock
Uses EU sizing only. Narrow/regular/wide widths.
How to measure your foot length (CM)
- 1Place a sheet of paper on a hard floor and stand on it with your heel against a wall.
- 2Mark the tip of your longest toe (usually the big toe, but not always).
- 3Measure from the wall to the mark in centimetres.
- 4Measure both feet, use the larger measurement.
- 5Add 0.5–1 cm for comfort when selecting a shoe size.
How to convert shoe sizes
Three steps. Works for any international size system.
- 01
Select men's, women's, or kids'
Sizing charts differ by gender: a US men's 8 is not the same as a US women's 8. Women's sizes run about 1.5 sizes larger than men's for the same foot length.
- 02
Choose your known size system
Pick US, UK, EU, or CM (foot length in centimetres). If you're unsure of your foot length, measure from the heel to the tip of your longest toe on a flat surface.
- 03
Select your size and read the equivalents
The converter shows all four systems at once. The full chart below highlights your row so you can see neighbouring sizes too, useful when you're between sizes.
When you need this
Buying shoes from international retailers
A UK size 9 men's is a US 10 and EU 43. Getting this wrong on a non-returnable order is an expensive mistake, especially on sites like ASOS, Zalando, or Farfetch.
Shopping for kids whose feet grow fast
Kids' EU sizes go up in roughly 6-month increments. Knowing the CM equivalent lets you measure their foot and buy one size up with confidence.
Buying gifts without knowing the recipient's size
If you know someone wears a US women's 7, you can convert to EU 37.5 and order from a European brand without guessing.
Comparing sizes across brands
Nike, Adidas, and New Balance all size slightly differently. The CM foot length is the most reliable anchor: measure once and use it across any brand's chart.
Why the numbers don't line up neatly
Each system grows in different steps. UK and US sizes go up by a barleycorn, one third of an inch or about 8.5 mm of shoe length, per full size. EU sizes use the Paris point, two thirds of a centimetre or about 6.7 mm. So one EU size is roughly four fifths of a UK size, and a conversion chart has to round, which is why you'll see EU 42 next to one US size on one brand's chart and the next size on another's.
US women's sizes start from a different zero point from men's, about 1.5 sizes higher for the same foot. The chart here uses common brand-chart values, so treat it as a starting point. India and Pakistan generally use UK sizes, and Japan, Korea and China label shoes in centimetres of foot length.
Measuring your foot for the cm column
- Measure in the evening, when feet are at their largest after a day of walking.
- Stand on a sheet of paper with your heel against a wall and mark the tip of your longest toe. Measure from the wall to the mark.
- Measure both feet and use the longer one. It's common for them to differ by a few millimetres.
- Match that length to the cm column, and go up half a size if you're between two, or for running shoes, which most people wear with a thumb's width of space at the toe.
Width matters too, and this chart doesn't cover it. If shoes in your size always pinch at the sides, look for brands that offer wide fittings, marked 2E or 4E in men's and D or 2E in women's US sizing.