Size 6.5C: the kids’ shoe size explained

A size 6.5C fits a foot of 13.3 to 13.8 cm (5.25 to 5.42 in): UK 6–6.5 and EU 22.5–23 by the standard size tables, a toddler size.

The median child’s foot reaches the middle of a 6.5C at about 22 months to 3 years, in the US Consumer Product Safety Commission’s survey of children.

Measure your child’s foot

Where 6.5C 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. Sizes by age.

After 6.5C: the next sizes

The next size, 7C, fits 4.2 mm more foot, up to 14.2 cm.

SizeFoot (cm)UKEUOutgrown at
6.5C (this size)13.3–13.86–6.522.5–23about 22 months to 3 years
7C13.8–14.26.5–723–23.5about 22 months to 3 years
7.5C14.2–14.67–7.523.5–24about 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 3 brands print for a 6.5C

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 6.5C

Their kids’ charts skip it (most toddler charts print whole sizes only). For a foot that fills a 6.5C, up to 13.8 cm, their own charts give:

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Sizes for

6.5C in every system

System6.5C
Foot length (cm)13.3–13.8
Foot length (in)5.25–5.42
UK6–6.5
EU22.5–23
Japan (cm)13.5–14
Mondopoint (mm)135–140

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.