Kids Clothing Size Converter
Baby & kids US, UK, EU.
Baby & kids US, UK, EU.
How to use Kids Clothing Size Converter
- Switch between baby, kids clothing, or kids shoes
- Pick the size system you know and enter the size
- Read the US, UK, and EU equivalents plus the height in centimetres
About Kids Clothing Size Converter
Convert baby and children's clothing and shoe sizes between the US, UK and EU systems. Pick the size you already know — a US kids 4, a UK age label, or an EU number — and the tool shows the equivalents in the other systems, along with the child's height in centimetres, which is how EU sizing actually works. Switch between the baby, kids clothing and kids shoes tabs depending on what you're buying.
The catch with children's sizing is that the three systems don't share one logic: US and UK sizes are labelled by age, while EU sizes are labelled by the child's height. A single generic chart papers over that mismatch; this converter reconciles all three, so you can move from an age-based label to a height-based one without guessing. It also keeps clothing separate from shoes, because kids' shoe numbers run on their own scale and even restart between the toddler and youth ranges.
Because brands cut so differently, treat any result as a solid starting point and confirm it against the height and chest measurements on the specific brand's chart. The converter is completely free, needs no sign-up, and runs entirely in your browser — nothing you enter is uploaded anywhere.
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.
- How do I convert a US kids size to UK?
- US and UK children's clothing sizes are both labelled by age and line up closely, so a US kids size usually maps to the same UK age band. Small differences exist between brands, so check the height on the chart when the fit really matters.
- How do baby clothing sizes convert between US, UK and EU?
- Switch to the baby tab and pick the size you know — US and UK baby sizes go by age in months, while EU baby sizes go by height in centimetres. Because newborns grow fast, buying by current height and weight is more reliable than by the month label.
- 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.
- How do I find the right size from my child's height?
- Height is the most dependable input, since EU sizes are literally the height in centimetres. Match the EU number closest to your child's height and the tool shows the equivalent US and UK labels.
- 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.
- Is this kids clothing size converter free, and is my data private?
- Yes, it's completely free with no sign-up. Everything runs in your browser, so the sizes you enter are never uploaded or stored anywhere.