Kids' Shoe Size by Age

Kids' Shoe Size by Age — US, EU & CM Chart

Find the right shoe size for your child by age. Includes US, EU and foot length in CM — from newborn infant to big kid. Age is a guide only — always measure the foot.

Enter your child's age to see the typical shoe size range.
Important: Age is a guide only. Always measure your child's foot in CM and use that measurement — two children of the same age can differ by 2+ shoe sizes.

This kids' shoe size by age chart helps you find the right children's shoe size in US, EU, and centimeters based on your child's age. Shoe sizing for children is split into four stages: Infant (newborn to 12 months), Toddler (1–4 years), Little Kid (4–7 years), and Big Kid (7–12 years). This chart gives typical size ranges for each age group, but because children's feet grow at different rates, measuring the actual foot is always more reliable than age alone.

Kids' Shoe Size by Age Chart — US, EU & CM

Children's shoe sizes by age — source: Zappos official kids' size chart
StageAgeUS SizeEUFoot CM
Infant0–6 months0–115–177.9–9.9
Infant6–12 months2–418–2010.2–11.4
Toddler1–2 years4.5–720–2311.7–14.0
Toddler2–3 years7.5–923.5–2614.3–15.9
Toddler3–4 years9.5–1026.5–2716.2–16.5
Little Kid4–5 years10.5–1227.5–3016.8–18.1
Little Kid5–6 years12.5–1Y30.5–3218.4–19.7
Little Kid6–7 years1.5Y–3Y33–3520.0–21.6
Big Kid7–9 years3.5Y–5Y35.5–3721.9–23.2
Big Kid9–11 years5.5Y–6.5Y37.5–38.523.5–24.4
Big Kid11–12 years7Y3924.8

How Fast Do Children's Feet Grow?

How to Measure a Child's Foot

  1. Have the child stand on a piece of paper wearing the socks they usually wear.
  2. Trace both feet and mark from heel to longest toe.
  3. Measure the longer foot in centimeters.
  4. Add 1–1.5 cm (⅜ to ½ inch) growing room before selecting the shoe size.

Frequently Asked Questions

What shoe size is a 2-year-old?
Most 2-year-olds wear US size 7.5 to 9 (EU 23.5–26, foot length approximately 14.3–15.9 cm). However, always measure the child's actual foot.
How much growing room should kids' shoes have?
Leave 1–1.5 cm (about a thumb-width) between the longest toe and the front of the shoe. Less causes cramping; more than 1.5 cm causes tripping and poor support.
What is a size 1Y in kids' shoes?
Size 1Y (1 Youth or 1 Big Kid) = about EU 32 = approximately 19.7 cm foot. The Y or Youth label marks the start of Big Kid sizing.
When do kids' shoe sizes become adult sizes?
Around age 12–13, children's Big Kid size 7 (EU 39–40) roughly corresponds to US women's 8.5 or US men's 7. The transition varies by foot size, not age.
Are EU children's sizes universal across brands?
EU children's sizes are standardized in number, but actual fit varies between brands. Always check foot length in CM against the specific brand's chart for children's shoes.