Size 13.5C: the kids’ shoe size explained
A size 13.5C fits a foot of 19.3 to 19.7 cm (7.58 to 7.75 in): UK 13–13.5 and EU 31–32 by the standard size tables, a little kid size.
The median child’s foot reaches the middle of a 13.5C at about 7½ years and stays in it for about 6 months, in the US Consumer Product Safety Commission’s survey of children.
Where 13.5C sits
After 13.5C: the next sizes
Shops sell 1Y next, but by the standard formulas it fits a slightly shorter foot than 13.5C, so the next longer size is 1.5Y. The next size, 1.5Y, fits 2.2 mm more foot, up to 19.9 cm. Around the age a 13.5C is outgrown the median child’s foot grows about 0.8 mm a month, so it fills a 1.5Y about 3 months later.
| Size | Foot (cm) | UK | EU | Outgrown at |
|---|---|---|---|---|
| 13.5C (this size) | 19.3–19.7 | 13–13.5 | 31–32 | about 8 years |
| 1.5Y | 19.7–19.9 | 13.5 | 32 | about 8 years |
| 2Y | 19.9–20.3 | 1 | 32–32.5 | about 8½ 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 7 brands print for a 13.5C
On the brands’ own charts a 13.5C is for a foot of up to 18.5 cm (Vans) to 19.7 cm (Nike); the standard is 19.7 cm. Check the brand’s chart before you buy.
| Brand | Prints | UK | EU | Foot up to |
|---|---|---|---|---|
| Vans size chart (opens the brand’s site) | 13.5C | 13 | 31 | 18.5 cm |
| adidas size chart (opens the brand’s site) | 13.5k | 13k | 31.5 | 19.1 cm |
| On size chart (opens the brand’s site) | 13.5K | 13K | 31.5 | 19.2 cm |
| Under Armour size chart (opens the brand’s site) | 13.5K | 13 | 31.5 | 19.5 cm |
| Jordan size chart (opens the brand’s site) | 13.5C | 13 | 31.5 | 19.7 cm |
| Nike size chart (opens the brand’s site) | 13.5C | 13 | 31.5 | 19.7 cm |
| Converse size chart (opens the brand’s site) | 13.5C | 13 | 31.5 | — |
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 13.5C
Their kids’ charts skip it. For a foot that fills a 13.5C, up to 19.7 cm, their own charts give:
- UGG size chart (opens the brand’s site) 1K to 20.1 cm
Convert another kids’ size
13.5C in every system
| System | 13.5C |
|---|---|
| Foot length (cm) | 19.3–19.7 |
| Foot length (in) | 7.58–7.75 |
| UK | 13–13.5 |
| EU | 31–32 |
| Japan (cm) | 19.5–20 |
| Mondopoint (mm) | 195–200 |
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.