There are different conversions of the European shoe size to the US. For 39 EU it can be 7.5 US to 9 US for women and for men 6 US to 7 US. In general, a basic conversion can be distinguished, which is based on the length of the monpoint foot, and that used by the footwear brands. In a standard conversion, the shoe size changes according to a certain pattern. In turn, in individual tables with shoe sizes, many factors affect the conversion used.
The values of US sizes for men and women differ. For women, this is 1 size larger than for men.
Standard European shoe size conversion to US
| EU | Foot length in cm | Man size US | Woman size US |
| 34 | 21.5 | 3 | 4 |
| 34.5 | 21.5 | 3.5 | 4.5 |
| 35 | 22 | 4 | 5 |
| 35.5 | 22.5 | 4.5 | 5.5 |
| 36 | 22.5 | 5 | 6 |
| 36.5 | 23 | 5 | 6 |
| 37 | 23.5 | 5.5 | 6.5 |
| 37.5 | 23.5 | 6 | 7 |
| 38 | 24 | 6.5 | 7.5 |
| 38.5 | 24.5 | 6.5 | 7.5 |
| 39 | 24.5 | 7 | 8 |
| 39.5 | 25 | 7.5 | 8.5 |
| 40 | 25.5 | 8 | 9 |
| 40.5 | 25.5 | 8.5 | 9.5 |
| 41 | 26 | 8.5 | 9.5 |
| 41.5 | 26.5 | 9 | 10 |
| 42 | 26.5 | 9.5 | 10.5 |
| 42.5 | 27 | 10 | 11 |
| 43 | 27.5 | 10.5 | 11.5 |
| 43.5 | 27.5 | 10.5 | 11.5 |
| 44 | 28 | 11 | 12 |
| 44.5 | 28.5 | 11.5 | 12.5 |
| 45 | 28.5 | 12 | 13 |
| 45.5 | 29 | 12.5 | 13.5 |
| 46 | 29.5 | 12.5 | 13.5 |
| 46.5 | 29.5 | 13 | 14 |
| 47 | 30 | 13.5 | 14.5 |
| 47.5 | 30.5 | 14 | 15 |
| 48 | 30.5 | 14 | 15 |
| 48.5 | 31 | 14.5 | 15.5 |
| 49 | 31.5 | 15 | 16 |
| 49.5 | 31.5 | 15.5 | 16.5 |
| 50 | 32 | 16 | 17 |
European sizes of both shoes usually increase by 0.5 sizes, but in some cases the conversion is different. If a size is converted from an imperial unit to an European unit, you can also come across sizes 1/3 or 2/3. However, do not be concerned about this because, for example, shoe 37 1/3 may have the same length as shoe 37. Correct size rounding plays an important role during conversion.
Typical EU to US shoe sizes chart for woman
| Size EU | Min size US | Max size US | Average size US |
| 34 1/2 | 4 | 5 | 4.5 |
| 35 | 4.5 | 5.5 | 4.92 |
| 35 1/2 | 5 | 5.5 | 5.2 |
| 36 | 5 | 6 | 5.72 |
| 36 1/2 | 6 | 6.5 | 6.3 |
| 36 2/3 | 5.5 | 5.5 | 5.5 |
| 37 | 6 | 7 | 6.75 |
| 37 1/3 | 6 | 6 | 6 |
| 37 1/2 | 6.5 | 7.5 | 6.9 |
| 38 | 6.5 | 8 | 7.39 |
| 38 1/2 | 7.5 | 8.5 | 8 |
| 38 2/3 | 7 | 7 | 7 |
| 39 | 7.5 | 9 | 8.44 |
| 39 1/3 | 7.5 | 7.5 | 7.5 |
| 39 1/2 | 8 | 9.5 | 8.88 |
| 40 | 8 | 10 | 9.11 |
| 40 1/2 | 9 | 10.5 | 9.66 |
| 40 2/3 | 8.5 | 8.5 | 8.5 |
| 41 | 9.5 | 11 | 10.14 |
| 41 1/3 | 9 | 9 | 9 |
| 41 1/2 | 9.5 | 11.5 | 10.33 |
| 42 | 9.5 | 12 | 10.5 |
| 42 1/2 | 10.5 | 11 | 10.75 |
| 42 2/3 | 10 | 10 | 10 |
| 43 | 11 | 12.5 | 11.63 |
| 43 1/3 | 10.5 | 10.5 | 10.5 |
| 43 1/2 | 11 | 11 | 11 |
| 44 | 11 | 12 | 11.6 |
| 44 1/2 | 12 | 12.5 | 12.17 |
| 44 2/3 | 11.5 | 11.5 | 11.5 |
| 45 | 12.5 | 13 | 12.75 |
| 45 1/3 | 12 | 12 | 12 |
| 45 1/2 | 13 | 13 | 13 |
| 46 | 12.5 | 13.5 | 13.17 |
| 46 2/3 | 13 | 13 | 13 |
| 47 | 14 | 14 | 14 |
| 47 1/3 | 13.5 | 13.5 | 13.5 |
| 47 1/2 | 14.5 | 14.5 | 14.5 |
| 48 | 14 | 15 | 14.5 |
| 48 1/2 | 15.5 | 15.5 | 15.5 |
| 48 2/3 | 14.5 | 14.5 | 14.5 |
| 49 | 15 | 16 | 15.5 |
| 49 1/3 | 15 | 15 | 15 |
| 50 | 15.5 | 16.5 | 15.83 |
| 50 1/2 | 17 | 17 | 17 |
| 51 | 17.5 | 17.5 | 17.5 |
| 51 1/2 | 18 | 18 | 18 |
| 52 | 18.5 | 18.5 | 18.5 |
| 52 1/2 | 19 | 19 | 19 |
| 53 | 19.5 | 19.5 | 19.5 |
| 53 1/2 | 20 | 20 | 20 |
| 54 | 20.5 | 20.5 | 20.5 |
| 54 1/2 | 21 | 21 | 21 |
| 55 | 21.5 | 21.5 | 21.5 |
| 55 1/2 | 22 | 22 | 22 |
| 56 | 22.5 | 22.5 | 22.5 |
Typical EU to US shoe sizes chart for man
| Size EU | min size US | max size US | average size US |
| 35 1/2 | 3.5 | 3.5 | 3.5 |
| 36 | 4 | 4.5 | 4.13 |
| 36 1/2 | 4.5 | 5 | 4.75 |
| 36 2/3 | 4.5 | 4.5 | 4.5 |
| 37 | 4.5 | 5.5 | 5 |
| 37 1/3 | 5 | 5 | 5 |
| 37 1/2 | 5 | 5 | 5 |
| 38 | 5.5 | 6 | 5.63 |
| 38 1/2 | 6 | 6.5 | 6.25 |
| 38 2/3 | 6 | 6 | 6 |
| 39 | 6 | 7 | 6.43 |
| 39 1/3 | 6.5 | 6.5 | 6.5 |
| 39 1/2 | 6.5 | 7 | 6.67 |
| 40 | 7 | 7.5 | 7.17 |
| 40 1/2 | 7.5 | 8 | 7.63 |
| 41 | 7.5 | 8.5 | 8 |
| 41 1/3 | 8 | 8 | 8 |
| 41 1/2 | 8 | 8.5 | 8.38 |
| 42 | 8.5 | 9 | 8.78 |
| 42 1/2 | 9 | 9.5 | 9.33 |
| 43 | 9 | 10 | 9.69 |
| 43 1/3 | 9.5 | 9.5 | 9.5 |
| 43 1/2 | 9.5 | 10.5 | 10 |
| 44 | 10 | 11 | 10.56 |
| 44 1/2 | 10.5 | 11.5 | 11 |
| 45 | 10.5 | 12 | 11.44 |
| 45 1/3 | 11 | 11 | 11 |
| 45 1/2 | 11.5 | 12.5 | 12 |
| 46 | 11.5 | 13 | 12.06 |
| 46 1/2 | 12 | 12.5 | 12.25 |
| 46 2/3 | 12 | 12 | 12 |
| 47 | 12.5 | 13 | 12.8 |
| 47 1/3 | 12.5 | 12.5 | 12.5 |
| 47 1/2 | 13 | 13 | 13 |
| 48 | 13 | 14 | 13.5 |
| 48 1/2 | 14 | 14 | 14 |
| 48 2/3 | 13.5 | 13.5 | 13.5 |
| 49 | 14 | 15 | 14.63 |
| 49 1/3 | 14 | 14 | 14 |
| 49 1/2 | 15 | 15 | 15 |
| 50 | 14.5 | 16 | 15.5 |
| 50 1/2 | 15 | 16 | 15.5 |
| 50 2/3 | 15 | 15 | 15 |
| 51 | 16.5 | 17 | 16.75 |
| 51 1/3 | 16 | 16 | 16 |
| 51 1/2 | 16 | 17 | 16.5 |
| 52 | 17.5 | 18 | 17.75 |
| 52 1/2 | 18 | 18 | 18 |
| 52 2/3 | 17 | 17 | 17 |
| 53 | 18.5 | 18.5 | 18.5 |
| 53 1/3 | 18 | 18 | 18 |
| 54 | 19.5 | 19.5 | 19.5 |
| 54 1/2 | 20 | 20 | 20 |
| 54 2/3 | 19 | 19 | 19 |
| 55 | 20.5 | 20.5 | 20.5 |
| 55 1/2 | 21 | 21 | 21 |
| 55 2/3 | 20 | 20 | 20 |
| 56 | 21.5 | 21.5 | 21.5 |
| 56 1/2 | 22 | 22 | 22 |
