Baby shoe size chart by age
Baby shoe sizes from newborn to about 12 months in US, UK, EU and centimetres. At this age soft, roomy shoes matter more than an exact size.
| US | UK | EU | Foot (cm) | Age |
|---|---|---|---|---|
| 0 | 0 | 15 | 8.3 | 0 to 3 months |
| 1 | 0.5 | 16 | 9.1 | 0 to 3 months |
| 1.5 | 1 | 17 | 9.5 | 3 to 6 months |
| 2 | 1.5 | 17 | 10.2 | 3 to 6 months |
| 2.5 | 1.5 | 18 | 10.5 | 6 to 9 months |
| 3 | 2 | 18.5 | 11 | 6 to 9 months |
| 3.5 | 2.5 | 19 | 11.4 | 9 to 12 months |
| 4 | 3 | 19.5 | 11.7 | 9 to 12 months |
Ages are a guide only, since children grow at different rates. Always measure the foot, and see how to measure shoe size for the method.
Babies do not need firm shoes until they are walking confidently, so for the newborn to crawling stage the priority is soft, flexible booties or socks that keep feet warm without restricting movement. The sizes here run from a US 0 to about a US 4, covering roughly newborn to 12 months.
Because a baby's foot is still forming, avoid anything stiff or tight. Buy for the current length with a little room, and check the fit often, since feet at this age can grow surprisingly fast. Once your baby starts walking, move to the toddler range.
Common questions
What shoe size is a newborn?
A newborn is usually a US 0 to 1, which is EU 15 to 16 and a foot length around 8 to 9 centimetres. Soft booties are best at this stage.
Do babies need shoes before walking?
No. Before walking, socks or soft booties for warmth are all a baby needs. Firm shoes can interfere with natural foot development.
How do I measure a baby's foot?
Gently hold the foot flat against a ruler or measure a sock that fits, from heel to longest toe in centimetres, then match it to the chart. Babies rarely hold still, so measure a few times.
Last reviewed and updated on July 2, 2026. Conversion tables are checked against published international sizing standards.