Kids Clothing Size Converter
Baby & kids US, UK, EU.
Loading tool…
About Kids Clothing Size Converter
Convert baby and children's clothing and shoe sizes between US, UK and EU systems. Switch between baby, kids clothing and kids shoes, pick the size you know, and see the equivalents — including the child's height in centimetres, which is how EU sizes actually work.
US and UK sizes go by age while EU sizes go by height, so this reconciles three different logics that a single generic chart doesn't. It is completely free with no sign-up, and it runs entirely in your browser.
Frequently asked questions
- What is a US kids size 4 in EU sizing?
- A US kids 4 is roughly an EU 104, meaning it's cut for a child up to about 104 cm tall. EU sizes are based on height, so measuring your child is the most reliable guide.
- What's the difference between 4T and size 4?
- They're cut for the same height and chest, but 4T (toddler) is roomier through the seat for a nappy/diaper, while a plain 4 is cut for a potty-trained child.
- How do EU children's sizes work?
- EU sizes are simply the child's height in centimetres — EU 110 fits a child up to about 110 cm tall — which is why they don't line up neatly with age-based US and UK sizes.
- What size should I buy for my child's age?
- Use the age as a starting point, but measure height and chest and check the specific brand's chart, because children's sizes vary a lot between brands.
- Are children's shoe sizes converted the same way?
- No — shoe sizes use a separate scale, so switch to the Kids shoes tab. US kids shoe numbers also restart from the toddler to the youth range, so match by EU size or foot length where you can.