The guide below will show you the UK size to order on our website 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. Some brands have their own version of the UK-EU size conversion chart which differs slightly. Brand specific size charts can be found on every product page.
| Age Range | UK | EU Size | Foot Length (mm) |
| Infant | 2 Child | 17.5 | 101 |
| Infant | 2.5 Child | 18 | 105 |
| Infant | 3 Child | 18.5 | 109 |
| Infant | 3.5 Child | 19 | 113 |
| Toddler | 4 Child | 20 | 117 |
| Toddler | 4.5 Child | 20.5 | 122 |
| Toddler | 5 Child | 21 | 126 |
| Toddler | 5.5 Child | 22 | 130 |
| Toddler | 6 Child | 22.5 | 134 |
| Toddler | 6.5 Child | 23 | 138 |
| Toddler | 7 Child | 24 | 142 |
| Toddler | 7.5 Child | 25 | 147 |
| Toddler | 8 Child | 25.5 | 151 |
| Toddler | 8.5 Child | 26 | 155 |
| Toddler | 9 Child | 27 | 159 |
| Toddler | 9.5 Child | 27.5 | 164 |
| Kids | 10 Child | 28 | 168 |
| Kids | 10.5 Child | 28.5 | 172 |
| Kids | 11 Child | 29 | 176 |
| Kids | 11.5 Child | 29.5 | 181 |
| Kids | 12 Child | 30 | 185 |
| Kids | 12.5 Child | 31 | 189 |
| Kids | 13 Child | 32 | 193 |
| Kids | 13.5 Child | 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 |