SIZE GUIDES / Footwear
International Shoe Size Conversion Chart — Women & Men
Compare Nike men’s/women’s shoe labels and foot lengths, plus a separate BOSS men’s US, UK, Europe, Russia, Japan and Korea reference.
Updated: · No sign-up required
Find a country or size system
Choose a country to jump to its size chart. Use the chart for the brand you plan to buy; unavailable systems cannot be converted here.
The BOSS men’s table supplies US, UK, Europe, Russia, Japan and Korea. S-M-L is not provided for these shoes. Women’s results remain in the separate Nike men/women table.
Adult shoe size equivalents
Don’t know your size? Use measurements
Enter your body measurements. If several ranges overlap, the first match is shown; between two listed measurements, the larger size is shown. Check the product’s fit before buying. Nike · adult footwear reference
Choose a size to highlight matches, or select a row below.
Scroll sideways for the full chart
| US men | US women | UK | Europe (EU) | CM / JP label | Foot length (cm) |
|---|---|---|---|---|---|
| 5 | 3 | 35.5 | 22.5 | 21.59 | |
| 5.5 | 3.5 | 36 | 23 | 22.07 | |
| 6 | 4 | 36.5 | 23.5 | 22.38 | |
| 6.5 | 4.5 | 37.5 | 23.5 | 22.86 | |
| 7 | 5 | 38 | 24 | 23.34 | |
| 7.5 | 5.5 | 38.5 | 24 | 23.65 | |
| 8 | 6 | 39 | 24.5 | 24.13 | |
| 8.5 | 6 | 40 | 25 | 24.61 | |
| 9 | 6.5 | 40.5 | 25.5 | 24.92 | |
| 9.5 | 7 | 41 | 26 | 25.4 | |
| 10 | 7.5 | 42 | 26.5 | 25.88 | |
| 10.5 | 8 | 42.5 | 27 | 26.19 | |
| 11 | 8.5 | 43 | 27.5 | 26.67 | |
| 11.5 | 9 | 44 | 28 | 27.15 | |
| 12 | 9.5 | 44.5 | 28.5 | 27.46 | |
| 12.5 | 10 | 45 | 29 | 27.94 | |
| 13 | 10.5 | 45.5 | 29.5 | 28.42 | |
| 13.5 | 11 | 46 | 30 | 28.73 | |
| 14 | 11.5 | 47 | 30.5 | 29.21 | |
| 14.5 | 12 | 47.5 | 31 | 29.69 | |
| 15 | 12.5 | 48 | 31.5 | 30 | |
| 15.5 | 13 | 48.5 | 32 | 30.48 |
Nike adult reference. CM/JP is a shoe label, not measured foot length. A repeated UK or CM label can match more than one row; all matches are shown. Foot lengths are converted from Nike’s published inch measurements.
Brand size guide: Nike · adult footwear reference
BOSS men’s shoes: Russia, Japan & Korea
Choose a size to highlight matches, or select a row below.
Scroll sideways for the full chart
| US men | UK | Europe (EU) | Russia | Japan | Korea |
|---|---|---|---|---|---|
| 5 | 39 | 39 | 24 | 240 | |
| 6 | 40 | 40 | 25 | 250 | |
| 7 | 41 | 41 | 26 | 260 | |
| 8 | 42 | 42 | 27 | 270 | |
| 9 | 43 | 43 | 28 | 280 | |
| 10 | 44 | 44 | 29 | 290 | |
| 11 | 45 | 45 | 30 | 300 | |
| 12 | 46 | 46 | 31 | 310 |
BOSS men’s shoe labels, separate from Nike. Only rows with published Korean labels are included; the source leaves Korean half-size entries blank. S-M-L is not supplied for these shoes. Labels are not measured foot lengths.
Brand size guide: HUGO BOSS · men’s footwear regional labels
Foot length, shoe labels and country systems are different
Choose the brand and whether the US label is men’s or women’s before selecting a size. The Nike table includes a separate actual-foot-length column: its CM/JP label must not be entered as though it were a measured foot. Measure both feet and use the longer result before checking the product’s width and shape.
The BOSS regional table gives another clearly named reference. For its men’s shoes, US 8 corresponds to UK 7, Europe/Russia 41, Japan 26 and Korea 260. Those values do not override a Nike result. Only BOSS rows with published Korean labels are included, so a missing half size is not rounded into an invented equivalent.
See how a size converts
In Adult shoe size equivalents choose US men 9. The listed equivalents are:
- US men 9
- US women 10.5
- UK 8
- Europe (EU) 42.5
- CM / JP label 27
Brand size guide: Nike · adult footwear reference
Open this example in the converter →Three checks before ordering
- Match the product brand, country system and garment type to the selected table.
- Keep body and garment measurements separate, with consistent centimetre or inch units.
- Check the specific style’s length, width and stretch, then read the store’s sizing and exchange information.
START WITH MEASUREMENTS
How to measure
- 01
Stand on a firm floor with your usual socks. Mark the heel and longest toe on paper while keeping your weight on the foot.
- 02
Measure the distance between the marks for both feet and use the longer measurement.
- 03
Use the brand’s foot-length guide. Do not treat a CM/JP label as measured foot length, or add an allowance twice.
A few things labels don’t tell you.
Choose the correct US men’s or women’s scale first. Width and the shape of the shoe also affect fit; an equivalent length label cannot predict either.
Common questions
What is US men’s 9 in UK and EU sizes?
In this Nike reference it corresponds to UK 8 and EU 42.5, with a CM/JP label of 27.
How do I convert US women’s to men’s shoes?
Read across the same row. For example, US women’s 9.5 corresponds to US men’s 8 in this reference. Other brands can differ.
Does JP 27 mean my foot is exactly 27 cm?
Not for this Nike chart. Nike distinguishes the CM/JP shoe label from measured foot length; use their foot-length guide for fit.
Can I convert women’s & men’s shoes to Russia, Japan, Korea or S-M-L?
The BOSS men’s table supplies US, UK, Europe, Russia, Japan and Korea. S-M-L is not provided for these shoes. Women’s results remain in the separate Nike men/women table.