1. Place a piece of paper on the floor agianst the wall.
2. Wearing your socks, stand on the sheet of paper with your foot perpendicualr to the wall and your heel against the wall.
3. Use a pen to draw a line just in front of your big toe. Repeat for both feet and then take the longer distance to determine your size.
4. Using a ruler, measure the distance between the wall and the line you drew to find your size.
| Foot (mm) | US (W) | EU | UK | US (M) |
| --- | 4.5 | 35 | 2.5 | --- |
| --- | 5 | 36 | 3 | 4 |
| 225 | 5.5 | 36.5 | 3.5 | 4.5 |
| 230 | 6 | 37 | 4 | 5 |
| 235 | 6.5 | 37.5 | 4.5 | 5.5 |
| 240 | 7 | 38 | 5 | 6 |
| 245 | 7.5 | 39 | 5.5 | 6.5 |
| 250 | 8 | 39.5 | 6 | 7 |
| 252 | 8.5 | 40 | 6.5 | 7.5 |
| 255 | 9 | 41 | 7 | 8 |
| 260 | 9.5 | 41.5 | 7.5 | 8.5 |
| 265 | 10 | 42 | 8 | 9 |
| 270 | 10.5 | 42.5 | 8.5 | 9.5 |
| 275 | 11 | 43 | 9 | 10 |
| 280 | --- | 43.5 | 9.5 | 10.25 |
| 280 | 11.5 | 44 | 10 | 10.5 |
| 290 | 12 | 44.5 | 10.5 | 11 |
| 295 | 12.5 | 45 | 11 | 11.5 |
| 300 | 13 | 45.5 | 11.5 | 12 |
| 305 | 13.5 | 46 | 12 | 12.5 |
| 310 | 14 | 47 | 12.5 | 13 |
| 315 | 15 | 48 | 13 | 14 |