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Size guide - Clarks - Boys - Footwear
Size guide provided by Clarks.
| UK | 03.5 | 04 | 04.5 | 05 | 05.5 | 06 | 06.5 | 07 | 07.5 | 08 | 08.5 | 09 | 09.5 | 010 | 010.5 | 011 | 011.5 | 012 | 012.5 | 013 | 013.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 |
| US | 04 | 04.5 | 05 | 05.5 | 06 | 06.5 | 07 | 07.5 | 08 | 08.5 | 09 | 09.5 | 010 | 010.5 | 011 | 011.5 | 012 | 012.5 | 013 | 013.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 |
| EU | 19.5 | 20.5 | 21 | 21.5 | 22 | 23 | 24 | 24.5 | 25 | 25.5 | 26 | 27 | 27.5 | 28 | 28.5 | 29 | 30 | 30.5 | 31 | 32 | 32.5 | 33 | 33.5 | 34 | 35 | 35.55 | 36 | 36 2/3 | 37 1/3 | 38 | 38 2/3 | 39 1/3 | 40 | 40 2/3 |
| Heel-Toe (CM) | 11.4 | 11.9 | 12.3 | 12.7 | 13.1 | 13.5 | 14 | 14.4 | 14.8 | 15.2 | 15.7 | 16.1 | 16.5 | 16.9 | 17.4 | 17.8 | 18.2 | 18.6 | 19 | 19.5 | 19.9 | 20.3 | 20.7 | 21.2 | 21.6 | 21.6 | 22.1 | 22.5 | 22.9 | 23.3 | 23.8 | 24.2 | 24.6 | 25 |
| Age Group | Baby/Toddler | Baby/Toddler | Baby/Toddler | Baby/Toddler | Baby/Toddler | Baby/Toddler | Baby/Toddler | Baby/Toddler | Baby/Toddler | Baby/Toddler | Baby/Toddler | Baby/Toddler | Baby/Toddler | Junior Kids | Junior Kids | Junior Kids | Junior Kids | Junior Kids | Junior Kids | Junior Kids | Junior Kids | Junior Kids | Junior Kids | Junior Kids | Senior Kids | Senior Kids | Senior Kids | Senior Kids | Senior Kids | Senior Kids | Senior Kids | Senior Kids | Senior Kids | Senior Kids |
| UK | US | EU | Heel-Toe (CM) | Age Group |
|---|---|---|---|---|
| 03.5 | 04 | 19.5 | 11.4 | Baby/Toddler |
| 04 | 04.5 | 20.5 | 11.9 | Baby/Toddler |
| 04.5 | 05 | 21 | 12.3 | Baby/Toddler |
| 05 | 05.5 | 21.5 | 12.7 | Baby/Toddler |
| 05.5 | 06 | 22 | 13.1 | Baby/Toddler |
| 06 | 06.5 | 23 | 13.5 | Baby/Toddler |
| 06.5 | 07 | 24 | 14 | Baby/Toddler |
| 07 | 07.5 | 24.5 | 14.4 | Baby/Toddler |
| 07.5 | 08 | 25 | 14.8 | Baby/Toddler |
| 08 | 08.5 | 25.5 | 15.2 | Baby/Toddler |
| 08.5 | 09 | 26 | 15.7 | Baby/Toddler |
| 09 | 09.5 | 27 | 16.1 | Baby/Toddler |
| 09.5 | 010 | 27.5 | 16.5 | Baby/Toddler |
| 010 | 010.5 | 28 | 16.9 | Junior Kids |
| 010.5 | 011 | 28.5 | 17.4 | Junior Kids |
| 011 | 011.5 | 29 | 17.8 | Junior Kids |
| 011.5 | 012 | 30 | 18.2 | Junior Kids |
| 012 | 012.5 | 30.5 | 18.6 | Junior Kids |
| 012.5 | 013 | 31 | 19 | Junior Kids |
| 013 | 013.5 | 32 | 19.5 | Junior Kids |
| 013.5 | 1 | 32.5 | 19.9 | Junior Kids |
| 1 | 1.5 | 33 | 20.3 | Junior Kids |
| 1.5 | 2 | 33.5 | 20.7 | Junior Kids |
| 2 | 2.5 | 34 | 21.2 | Junior Kids |
| 2.5 | 3 | 35 | 21.6 | Senior Kids |
| 3 | 3.5 | 35.55 | 21.6 | Senior Kids |
| 3.5 | 4 | 36 | 22.1 | Senior Kids |
| 4 | 4.5 | 36 2/3 | 22.5 | Senior Kids |
| 4.5 | 5 | 37 1/3 | 22.9 | Senior Kids |
| 5 | 5.5 | 38 | 23.3 | Senior Kids |
| 5.5 | 6 | 38 2/3 | 23.8 | Senior Kids |
| 6 | 6.5 | 39 1/3 | 24.2 | Senior Kids |
| 6.5 | 7 | 40 | 24.6 | Senior Kids |
| 7 | 7.5 | 40 2/3 | 25 | Senior Kids |