Shoe size converter
Your size in every system
± brand difference- EU40.5smaller 40 · larger 41.5
- UK6.5smaller 6 · larger 7
- US men7.5smaller 7 · larger 8
- US women9smaller 8.5 · larger 9.5
- US kids7Ysmaller 6.5Y · larger –
- JP/KR (mm)250smaller 245 · larger 255
- China250smaller 245 · larger 255
- Mondopoint250smaller 245 · larger 255
Foot (cm): 25
Approximate; can vary by half to one size between brands. If you're between sizes, choose the larger.
Full size chart
| Foot (cm) | EU | UK | US men | US women | US kids | JP/KR (mm) |
|---|---|---|---|---|---|---|
| 11 | 19 | 3K | – | – | 3.5C | 110 |
| 11.5 | 19.5 | 3.5K | – | – | 4C | 115 |
| 12 | 20.5 | 4K | – | – | 4.5C | 120 |
| 12.5 | 21 | 5K | – | – | 5.5C | 125 |
| 13 | 22 | 5.5K | – | – | 6C | 130 |
| 13.5 | 22.5 | 6K | – | – | 6.5C | 135 |
| 14 | 23.5 | 6.5K | – | – | 7C | 140 |
| 14.5 | 24 | 7K | – | – | 7.5C | 145 |
| 15 | 25 | 7.5K | – | – | 8C | 150 |
| 15.5 | 25.5 | 8.5K | – | – | 9C | 155 |
| 16 | 26.5 | 9K | – | – | 9.5C | 160 |
| 16.5 | 27 | 9.5K | – | – | 10C | 165 |
| 17 | 28 | 10K | – | – | 10.5C | 170 |
| 17.5 | 28.5 | 10.5K | – | – | 11C | 175 |
| 18 | 29.5 | 11.5K | – | – | 12C | 180 |
| 18.5 | 30 | 12K | – | – | 12.5C | 185 |
| 19 | 31 | 12.5K | – | – | 13C | 190 |
| 19.5 | 31.5 | 13K | – | – | 13.5C | 195 |
| 20 | 32.5 | 13.5K | – | – | 1Y | 200 |
| 20.5 | 33.5 | 1 | 2 | 3.5 | 1.5Y | 205 |
| 21 | 34.5 | 2 | 3 | 4.5 | 2.5Y | 210 |
| 21.5 | 35.5 | 2.5 | 3.5 | 5 | 3Y | 215 |
| 22 | 36 | 3 | 4 | 5.5 | 3.5Y | 220 |
| 22.5 | 37 | 3.5 | 4.5 | 6 | 4Y | 225 |
| 23 | 37.5 | 4 | 5 | 6.5 | 4.5Y | 230 |
| 23.5 | 38.5 | 4.5 | 5.5 | 7 | 5Y | 235 |
| 24 | 39 | 5.5 | 6.5 | 8 | 6Y | 240 |
| 24.5 | 40 | 6 | 7 | 8.5 | 6.5Y | 245 |
| 25 | 40.5 | 6.5 | 7.5 | 9 | 7Y | 250 |
| 25.5 | 41.5 | 7 | 8 | 9.5 | – | 255 |
| 26 | 42 | 7.5 | 8.5 | 10 | – | 260 |
| 26.5 | 43 | 8.5 | 9.5 | 11 | – | 265 |
| 27 | 43.5 | 9 | 10 | 11.5 | – | 270 |
| 27.5 | 44.5 | 9.5 | 10.5 | 12 | – | 275 |
| 28 | 45 | 10 | 11 | 12.5 | – | 280 |
| 28.5 | 46 | 10.5 | 11.5 | 13 | – | 285 |
| 29 | 46.5 | 11 | 12 | 13.5 | – | 290 |
| 29.5 | 47.5 | 12 | 13 | 14.5 | – | 295 |
| 30 | 48 | 12.5 | 13.5 | 15 | – | 300 |
| 30.5 | 49 | 13 | 14 | 15.5 | – | 305 |
| 31 | 49.5 | 13.5 | 14.5 | 16 | – | 310 |
| 31.5 | 50.5 | 14 | 15 | 16.5 | – | 315 |
| 32 | 51 | 15 | 16 | 17.5 | – | 320 |
Sources: ISO 19407 plus the Nike, Adidas and Clarks size charts; BR from the Olympikus chart, RU from the GOST 11373-88 annex. Values marked “estimate” extend a chart past its range. The full ISO table is copyrighted and is not reproduced here.
Convert a shoe size between EU, UK, US men's, women's and kids', Japanese/Korean mm, Chinese and Mondopoint sizes, or start from your foot length. Every result shows the sizes just below and above, because brands differ.
Questions
Is my EU size the same in every brand?
No. Sizing systems are only loosely standardised, and brands run half a size small or large. Use the result as a starting point and check the brand's chart.
Why measure foot length instead of using my old size?
Foot length in centimetres is what every system is based on. Measure in the evening, with socks, and use the longer foot.
What comes after US kids 13.5?
The youth run restarts: US kids 13.5 is followed by 1Y, 1.5Y and so on up to about 7Y, where adult sizes take over.