Shoe Size Converter
Pick your size in one system and read the equivalent instantly. Foot length in centimetres is the most reliable anchor, because every other system is derived from it.
US (Men) 9EU 42.5
Conversions are standards-based. Individual brands still vary — check the brand chart before ordering.
Full shoe size conversion chart
| US (Men) | US (Women) | UK | EU | CM |
|---|---|---|---|---|
| 4 | 5.5 | 3.5 | 36 | 22 |
| 4.5 | 6 | 4 | 36.5 | 22.5 |
| 5 | 6.5 | 4.5 | 37.5 | 23 |
| 5.5 | 7 | 5 | 38 | 23.5 |
| 6 | 7.5 | 5.5 | 38.5 | 24 |
| 6.5 | 8 | 6 | 39 | 24.5 |
| 7 | 8.5 | 6.5 | 40 | 25 |
| 7.5 | 9 | 7 | 40.5 | 25.5 |
| 8 | 9.5 | 7.5 | 41 | 26 |
| 8.5 | 10 | 8 | 42 | 26.5 |
| 9 | 10.5 | 8.5 | 42.5 | 27 |
| 9.5 | 11 | 9 | 43 | 27.5 |
| 10 | 11.5 | 9.5 | 44 | 28 |
| 10.5 | 12 | 10 | 44.5 | 28.5 |
| 11 | 12.5 | 10.5 | 45 | 29 |
| 11.5 | 13 | 11 | 45.5 | 29.5 |
| 12 | 13.5 | 11.5 | 46 | 30 |
| 13 | 14.5 | 12.5 | 47.5 | 31 |
| 14 | 15.5 | 13.5 | 48.5 | 32 |
Measuring your foot correctly
Stand on paper against a wall in the socks you plan to wear, mark the longest toe, and measure heel to mark in centimetres. Measure late in the day when feet are at their largest, and use the longer foot. If you land between two rows, size up — length is easier to fix with lacing than a shoe that is genuinely too short. For brand-specific quirks see our shoe size conversion guide or the brand size charts.