Size Guide: Nike Shoes
| UK - Men | EU | US Men | US Women | cm | inch |
| 3 | 35.5 | 3.5 | 5 | 21.6 | 81/2 |
| 3.5 | 36 | 4 | 5.5 | 22 | 811/16 |
| 4 | 36.5 | 4.5 | 6 | 22.4 | 813/16 |
| 4.5 | 37.5 | 5 | 6.5 | 22.9 | 9 |
| 5 | 38 | 5.5 | 7 | 23.3 | 93/16 |
| 5.5 | 38.5 | 6 | 7.5 | 23.7 | 95/16 |
| 6 | 39 / 40 | 6.5 / 7 | 8 / 8.5 | 24.1 / 24.5 | 91/2 / 911/16 |
| 6.5 | 40.5 | 7.5 | 9 | 25 | 913/16 |
| 7 | 41 | 8 | 9.5 | 25.4 | 10 |
| 7.5 | 42 | 8.5 | 10 | 25.8 | 103/16 |
| 8 | 42.5 | 9 | 10.5 | 26.2 | 105/16 |
| 8.5 | 43 | 9.5 | 11 | 26.7 | 101/2 |
| 9 | 44 | 10 | 11.5 | 27.1 | 1011/16 |
| 9.5 | 44.5 | 10.5 | 12 | 27.5 | 1013/16 |
| 10 | 45 | 11 | 12.5 | 27.9 | 11 |
| 10.5 | 45.5 | 11.5 | 13 | 28.3 | 113/16 |
| 11 | 46 | 12 | 13.5 | 28.8 | 115/16 |
| 11.5 | 47 | 12.5 | 14 | 29.2 | 111/2 |
| 12 | 47.5 | 13 | 14.5 | 29.6 | 1111/16 |
| 12.5 | 48 | 13.5 | 15 | 30 | 1113/16 |
| 13 | 48.5 | 14 | 15.5 | 30.5 | 12 |
| 13.5 | 49 | 14.5 | 16 | 30.9 | 123/16 |
| 14 | 49.5 | 15 | 16.5 | 31.3 | 125/16 |
| 14.5 | 50 | 15.5 | 17 | 31.7 | 121/2 |
| 15 | 50.5 | 16 | 17.5 | 32.2 | 1211/16 |