The standard sizes for shoe insoles may vary from country to country, making it a headache to choose the right insole for children. Here are a few size conversion charts for different countries that I have compiled, hoping it will be helpful to all of you.
Taking the United Kingdom, United States, and European Union as examples, here are the specific lengths corresponding to different sizes:
| US Size | UK Size | EU Size | Insole Length (cm) |
| 8 | 7 | 25 | 15.6 |
| 9 | 8 | 26 | 16.5 |
| 10 | 9 | 27 | 17.1 |
| 11 | 10 | 28 | 17.8 |
| 12 | 11 | 29 | 18.4 |
| 13 | 12 | 30 | 19.1 |
| 14 | 13 | 31 | 19.7 |
| 15 | 14 | 32 | 20.3 |
| 16 | 15 | 33 | 21.0 |
| 17 | 16 | 34 | 21.6 |
| 18 | 17 | 35 | 22.2 |
Although the sizing standards may vary between countries, the actual lengths remain consistent. It is advisable to convert the children’s sizes into length units before making a selection to avoid any errors. Expand more related content: https://www.aideastep.com/kids-insoles/.