Size 9C: the kids’ shoe size explained

A size 9C fits a foot of 15.45 to 15.9 cm (6.08 to 6.25 in): UK 8.5–9 and EU 25.5–26 by the standard size tables, a toddler size.

The median child’s foot reaches the middle of a 9C at about 3½ years and stays in it for about 5 months, in the US Consumer Product Safety Commission’s survey of children.

Measure your child’s foot

Where 9C sits

0C · 8.25 cm10C · 16.7 cm13.5C · 19.7 cm
Toddler sizes end at 10C on most brands’ charts; little-kid sizes run on to 3Y. After 13.5C the count starts again at 1Y. A 9C lasts the median child about 5 months: measure again before then. Sizes by age.

After 9C: the next sizes

The next size, 9.5C, fits 4.2 mm more foot, up to 16.3 cm. Around the age a 9C is outgrown the median child’s foot grows about 0.9 mm a month, so it fills a 9.5C about 5 months later.

SizeFoot (cm)UKEUOutgrown at
9C15.45–15.98.5–925.5–26about 4 years
9.5C15.9–16.39–9.526–26.5about 4½ years
10C16.3–16.79.5–1026.5–27.5about 4½ 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 9C

On the brands’ own charts a 9C is for a foot of up to 15.0 cm (Under Armour) to 16.0 cm (Teva); the standard is 15.9 cm. Check the brand’s chart before you buy.

BrandPrintsUKEUFoot up to
Under Armour9K8.52615.0 cm
Vans9C8.525.515.0 cm
adidas9k8.5k2615.3 cm
CrocsC9924-2515.7 cm
UGG9T82615.9 cm
Jordan9C8.52615.9 cm
Nike9C8.52615.9 cm
Salomon9K8.5K2616.0 cm
Teva9T82616.0 cm
ASICSK9K826—
Converse9C925—
Liberty9C8C25—
Onitsuka TigerK9K826—

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.

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Sizes for

9C in every system

System9C
Foot length (cm)15.45–15.9
Foot length (in)6.08–6.25
UK8.5–9
EU25.5–26
Japan (cm)15.5–16
Mondopoint (mm)155–160

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.