Size 5C: the kids’ shoe size explained
A size 5C fits a foot of 12.1 to 12.5 cm (4.75 to 4.92 in): UK 4.5–5 and EU 20.5–21 by the standard size tables, a toddler size.
The median child’s foot reaches the middle of a 5C at about 20 months and stays in it for about 3 months, in the US Consumer Product Safety Commission’s survey of children.
Where 5C sits
After 5C: the next sizes
The next size, 5.5C, fits 4.2 mm more foot, up to 12.9 cm. Around the age a 5C is outgrown the median child’s foot grows about 1.1 mm a month, so it fills a 5.5C about 4 months later.
| Size | Foot (cm) | UK | EU | Outgrown at |
|---|---|---|---|---|
| 5C (this size) | 12.1–12.5 | 4.5–5 | 20.5–21 | about 22 months |
| 5.5C | 12.5–12.9 | 5–5.5 | 21–21.5 | about 22 months to 3 years |
| 6C | 12.9–13.3 | 5.5–6 | 21.5–22 | about 22 months to 3 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 12 brands print for a 5C
On the brands’ own charts a 5C is for a foot of up to 11.0 cm (Under Armour) to 12.5 cm (UGG); the standard is 12.5 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) | 5K | 4.5 | 21 | 11.0 cm |
| adidas size chart (opens the brand’s site) | 5k | 4k | 20 | 11.5 cm |
| Vans size chart (opens the brand’s site) | 5C | 4.5 | 21 | 11.5 cm |
| Teva size chart (opens the brand’s site) | 5T | 4 | 20 | 12.0 cm |
| Crocs size chart (opens the brand’s site) | C5 | 5 | 20-21 | 12.3 cm |
| Jordan size chart (opens the brand’s site) | 5C | 4.5 | 21 | 12.5 cm |
| Nike size chart (opens the brand’s site) | 5C | 4.5 | 21 | 12.5 cm |
| UGG size chart (opens the brand’s site) | 5T | 4.5 | 21 | 12.5 cm |
| ASICS size chart (opens the brand’s site) | K5 | K4 | 21 | — |
| Converse size chart (opens the brand’s site) | 5C | 5 | 21 | — |
| Liberty size chart (opens the brand’s site) | 5C | 4C | 20 | — |
| Onitsuka Tiger size chart (opens the brand’s site) | K5 | K4 | 21 | — |
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.
Convert another kids’ size
5C in every system
| System | 5C |
|---|---|
| Foot length (cm) | 12.1–12.5 |
| Foot length (in) | 4.75–4.92 |
| UK | 4.5–5 |
| EU | 20.5–21 |
| Japan (cm) | 12.5 |
| Mondopoint (mm) | 125 |
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.