| US Women | Inches | CM | Euro | UK |
|---|---|---|---|---|
| 5 | 8½ | 22.5 | 35.5 | 3 |
| 5.5 | 8¹³/₁₆ | 23 | 36 | 3.5 |
| 6 | 8¹⁵/₁₆ | 23.5 | 36.5 | 4 |
| 6.5 | 9¹/₁₆ | 23.5 | 37.5 | 4.5 |
| 7 | 9¼ | 24 | 38 | 5 |
| 7.5 | 9⁷⁄₁₆ | 24 | 38.5 | 5.5 |
| 8 | 9½ | 24.5 | 39 | 6 |
| 8.5 | 9¹¹/₁₆ | 25 | 40 | 6 |
| 9 | 9¾ | 25.5 | 40.5 | 6.5 |
| 9.5 | 9¹⁵/₁₆ | 26 | 41 | 7 |
| 10 | 10¹/₁₆ | 26.5 | 42 | 7.5 |
| 10.5 | 10¼ | 27 | 42.5 | 8 |
| 11 | 10⁷⁄₁₆ | 27.5 | 43 | 8.5 |