| INCHES | MM | UK | US | Europe |
|---|---|---|---|---|
| 0.52 | 12.84 | D | 2.25 | 41 |
| 0.53 | 13.57 | E | 2.75 | 42 |
| 0.55 | 13.97 | F | 3.25 | 44 |
| 0.56 | 14.38 | G | 3.75 | 45 |
| 0.58 | 14.88 | H | 4.25 | 46.5 |
| 0.59 | 15.10 | I | 4.5 | 47 |
| 0.60 | 15.49 | J | 5 | 48.5 |
| 0.62 | 15.90 | K | 5.5 | 50 |
| 0.64 | 16.31 | L | 6 | 51 |
| 0.65 | 16.71 | M | 6.5 | 52 |
| 0.67 | 17.12 | N | 6.75 | 53.5 |
| 0.69 | 17.53 | O | 7 | 55 |
| 0.70 | 17.93 | P | 7.5 | 56 |
| 0.72 | 18,34 | Q | 8 | 57 |
| 0.73 | 18.75 | R | 8.5 | 58.5 |
| 0.75 | 19.15 | S | 9 | 59.5 |
| 0.77 | 19.56 | T | 9.5 | 61 |
| 0.78 | 19.81 | U | 10 | 62.5 |
| 0.79 | 20.17 | V | 10.5 | 63 |
| 0.81 | 20.61 | W | 11 | 65 |
| 0.83 | 20.99 | X | 11.5 | 66 |
| 0.84 | 21.32 | Y | 12 | 67.5 |
| 0.85 | 21.71 | Z | 12.5 | 69 |
| 0.87 | 22.10 | Z+1 | 13 | 70.5 |