Size 4.5C: the kids’ shoe size explained
A size 4.5C fits a foot of 11.6 to 12.1 cm (4.58 to 4.75 in): UK 4–4.5 and EU 19.5–20.5 by the standard size tables, a toddler size.
The median child’s foot reaches the middle of a 4.5C at about 17 months and stays in it for about 4 months, in the US Consumer Product Safety Commission’s survey of children.
Where 4.5C sits
After 4.5C: the next sizes
The next size, 5C, fits 4.3 mm more foot, up to 12.5 cm. Around the age a 4.5C is outgrown the median child’s foot grows about 1.1 mm a month, so it fills a 5C about 4 months later.
| Size | Foot (cm) | UK | EU | Outgrown at |
|---|---|---|---|---|
| 4.5C (this size) | 11.6–12.1 | 4–4.5 | 19.5–20.5 | about 18 months |
| 5C | 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 |
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 2 brands print for a 4.5C
| Brand | Prints | UK | EU | Foot up to |
|---|---|---|---|---|
| Vans size chart (opens the brand’s site) | 4.5C | 4 | 20 | 11.0 cm |
| Converse size chart (opens the brand’s site) | 4.5C | 4.5 | 20.5 | — |
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.
6 brands don’t make a 4.5C
Their kids’ charts skip it (most toddler charts print whole sizes only). For a foot that fills a 4.5C, up to 12.1 cm, their own charts give:
- adidas size chart (opens the brand’s site) 5.5k to 12.3 cm
- Crocs size chart (opens the brand’s site) C5 to 12.3 cm
- Jordan size chart (opens the brand’s site) 5C to 12.5 cm
- Nike size chart (opens the brand’s site) 5C to 12.5 cm
- Teva size chart (opens the brand’s site) 6T to 13.0 cm
- Under Armour size chart (opens the brand’s site) 7K to 13.0 cm
Convert another kids’ size
4.5C in every system
| System | 4.5C |
|---|---|
| Foot length (cm) | 11.6–12.1 |
| Foot length (in) | 4.58–4.75 |
| UK | 4–4.5 |
| EU | 19.5–20.5 |
| Japan (cm) | 12–12.5 |
| Mondopoint (mm) | 120–125 |
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.