US Men's Size to UK Men's Size
Free US Men's Size to UK Men's Size converter with instant calculations. Trusted by millions worldwide. Includes conversion charts, formulas, and step-by-ste...
Based on published international size equivalence charts. · Updated 2026-05-29
Shoe Size Calculator
Shoe Size Conversion Chart
| US Men's | UK Men's | EU Men's | Length (CM) |
|---|---|---|---|
| 4 | 3.5 | 36 | 22.5 |
| 4.5 | 4 | 37 | 23 |
| 5 | 4.5 | 37.5 | 23.5 |
| 5.5 | 5 | 38 | 24 |
| 6 | 5.5 | 38.5 | 24.5 |
| 6.5 | 6 | 39 | 25 |
| 7 | 6.5 | 40 | 25.5 |
| 7.5 | 7 | 40.5 | 26 |
| 8 | 7.5 | 41 | 26.5 |
| 8.5 | 8 | 42 | 27 |
| 9 | 8.5 | 42.5 | 27.5 |
| 9.5 | 9 | 43 | 28 |
| 10 | 9.5 | 44 | 28.5 |
| 10.5 | 10 | 44.5 | 29 |
| 11 | 10.5 | 45 | 29.5 |
| 11.5 | 11 | 46 | 30 |
| 12 | 11.5 | 46.5 | 30.5 |
| 12.5 | 12 | 47 | 31 |
| 13 | 12.5 | 48 | 31.5 |
| 13.5 | 13 | 48.5 | 32 |
| 14 | 13.5 | 49 | 32.5 |
The formula
Sizes map through equivalence charts, not a single multiplier. Use the chart above to find the matching size.