Size 10C: the kids’ shoe size explained
A size 10C fits a foot of 16.3 to 16.7 cm (6.42 to 6.58 in): UK 9.5–10 and EU 26.5–27.5 by the standard size tables, a toddler size.
The median child’s foot reaches the middle of a 10C at about 4½ years and stays in it for about 5 months, in the US Consumer Product Safety Commission’s survey of children.
Where 10C sits
After 10C: the next sizes
The next size, 10.5C, fits 4.2 mm more foot, up to 17.1 cm. Around the age a 10C is outgrown the median child’s foot grows about 0.9 mm a month, so it fills a 10.5C about 5 months later.
| Size | Foot (cm) | UK | EU | Outgrown at |
|---|---|---|---|---|
| 10C (this size) | 16.3–16.7 | 9.5–10 | 26.5–27.5 | about 4½ years |
| 10.5C | 16.7–17.1 | 10–10.5 | 27.5–28 | about 5 years |
| 11C | 17.1–17.6 | 10.5–11 | 28–28.5 | about 5½ years |
Outgrown at: when the median child’s foot reaches the top of the size, girls and boys together. Half of children get there sooner.
What 13 brands print for a 10C
On the brands’ own charts a 10C is for a foot of up to 16.0 cm (Under Armour) to 17.0 cm (Teva); the standard is 16.7 cm. Check the brand’s chart before you buy.
| Brand | Prints | UK | EU | Foot up to |
|---|---|---|---|---|
| Under Armour size chart (opens the brand’s site) | 10K | 9.5 | 27 | 16.0 cm |
| Vans size chart (opens the brand’s site) | 10C | 9.5 | 26.5 | 16.0 cm |
| adidas size chart (opens the brand’s site) | 10k | 9.5k | 27 | 16.1 cm |
| Salomon size chart (opens the brand’s site) | 10K | 9.5K | 27 | 16.5 cm |
| Crocs size chart (opens the brand’s site) | C10 | 10 | 25-26 | 16.6 cm |
| Jordan size chart (opens the brand’s site) | 10C | 9.5 | 27 | 16.7 cm |
| Nike size chart (opens the brand’s site) | 10C | 9.5 | 27 | 16.7 cm |
| UGG size chart (opens the brand’s site) | 10T | 9 | 27.5 | 16.7 cm |
| Teva size chart (opens the brand’s site) | 10T | 9 | 27 | 17.0 cm |
| ASICS size chart (opens the brand’s site) | K10 | K9 | 27 | — |
| Converse size chart (opens the brand’s site) | 10C | 10 | 26 | — |
| Liberty size chart (opens the brand’s site) | 10C | 9C | 27 | — |
| Onitsuka Tiger size chart (opens the brand’s site) | K10 | K9 | 27 | — |
Each brand’s own kids’ chart, linked, as it prints the size; “—” where the chart has no such column. Brands that don’t print foot lengths are listed last. Not affiliated with any brand.
1 brand doesn’t make a 10C
Their kids’ charts skip it. For a foot that fills a 10C, up to 16.7 cm, their own charts give:
- On size chart (opens the brand’s site) 11K to 17.1 cm
Convert another kids’ size
10C in every system
| System | 10C |
|---|---|
| Foot length (cm) | 16.3–16.7 |
| Foot length (in) | 6.42–6.58 |
| UK | 9.5–10 |
| EU | 26.5–27.5 |
| Japan (cm) | 16.5–17 |
| Mondopoint (mm) | 165–170 |
From the standard size tables; where the foot range spans more than one size, the first and last are shown.
Size tables checked 2026-10-23; ages from the CPSC children’s survey (Snyder et al., 1977, via NIST AnthroKids), median of girls and boys; brand sizes from each brand’s own chart, linked above. An estimate to help you choose: fit varies by brand and model. Not medical advice.