The guide below will show you the UK size to order when you know the overall foot length.
The sizes shown are estimates and should only be used to give you an idea of the size you should order our website.
| Age Range | UK | EU Size | Foot Length (mm) |
| Infant | 2 | 17.5 | 101 |
| Infant | 2.5 | 18 | 105 |
| Infant | 3 | 18.5 | 109 |
| Infant | 3.5 | 19 | 113 |
| Toddler | 4 | 20 | 117 |
| Toddler | 4.5 | 20.5 | 122 |
| Toddler | 5 | 21 | 126 |
| Toddler | 5.5 | 22 | 130 |
| Toddler | 6 | 22.5 | 134 |
| Toddler | 6.5 | 23 | 138 |
| Toddler | 7 | 24 | 142 |
| Toddler | 7.5 | 25 | 147 |
| Toddler | 8 | 25.5 | 151 |
| Toddler | 8.5 | 26 | 155 |
| Toddler | 9 | 27 | 159 |
| Toddler | 9.5 | 27.5 | 164 |
| Kids | 10 | 28 | 168 |
| Kids | 10.5 | 28.5 | 172 |
| Kids | 11 | 29 | 176 |
| Kids | 11.5 | 29.5 | 181 |
| Kids | 12 | 30 | 185 |
| Kids | 12.5 | 31 | 189 |
| Kids | 13 | 32 | 193 |
| Kids | 13.5 | 32.5 | 198 |
| Kids | 1 | 33 | 202 |
| Kids | 1.5 | 33.5 | 206 |
| Kids | 2 | 34 | 210 |
| Kids | 2.5 | 35 | 214 |
| Youth | 3 | 35.5 | 219 |
| Youth | 3.5 | 36 | 223 |
| Youth | 4 | 37 | 227 |
| Youth | 4.5 | 37.5 | 231 |
| Youth | 5 | 38 | 236 |
| Youth | 5.5 | 39 | 240 |
| Youth | 6 | 39.5 | 244 |
| Youth | 6.5 | 40 | 249 |
| Youth | 7 | 41 | 253 |
| Youth | 7.5 | 41.5 | 257 |
| Youth | 8 | 42 | 261 |
| Youth | 8.5 | 42.5 | 265 |
| Youth | 9 | 43 | 269 |
| Youth | 9.5 | 44 | 274 |
| Youth | 10 | 44.5 | 278 |