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Baby & Toddler Shoe Size Chart

Find the right shoe size for your baby or toddler by measuring foot length in cm or mm. Instantly converts to US, UK, and EU sizes. Includes a complete reference chart from newborn to youth sizes.

Measure your child's longest foot. Stand them on paper, trace, and measure heel-to-toe.

Full Size Reference Chart

StageUSUKEUFoot (cm)Age (approx)
Newborn0015–167.5–90–1 mo
Infant (XS)10.516–179.1–9.90–3 mo
Infant (S)211710–10.43–6 mo
Infant (M)321810.5–11.36–9 mo
Infant (L)3.52.51911.4–11.89–12 mo
Infant (XL)4319–2011.9–12.49–12 mo
Toddler (XS)4.53.52012.5–12.912–18 mo
Toddler (S)542113–13.412–18 mo
Toddler (M)652213.5–1418–24 mo
Toddler (L)762314.1–14.62 yr
Toddler (XL)8724–2514.7–15.42–3 yr
Little Kid (S)9825–2615.5–163 yr
Little Kid (M)1092716.1–16.83–4 yr
Little Kid (L)111028–2916.9–17.64–5 yr
Little Kid (XL)121129–3017.7–18.45–6 yr
Big Kid (S)13123118.5–19.26–7 yr
Big Kid (M)1Y1332–3319.3–207–8 yr
Big Kid (L)2Y133–3420.1–20.88–9 yr
Big Kid (XL)3Y23520.9–21.69–10 yr
Youth (S)4Y33621.7–22.410–11 yr
Youth (M)5Y437–3822.5–23.211–12 yr
Youth (L)6Y538–3923.3–2412–13 yr

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How to Measure Your Baby's Feet at Home

Getting an accurate foot measurement at home is easy and only takes a minute. Foot-length measurement is far more reliable than age-based guessing, as children's feet vary significantly within the same age group.

1

Trace on paper

Place foot flat on plain paper. Stand child (or hold foot down) and trace around the entire foot, including the heel.

2

Measure heel to toe

Use a ruler to measure from the back of the heel to the tip of the longest toe in centimeters or millimeters.

3

Add growing room

Add 0.5–1 cm to your measurement before looking up the size. This accounts for toe room and normal swelling throughout the day.

Signs of a Good Shoe Fit

✓ Good fit

  • •~1 thumb-width of space at the front toe
  • •Toes can wiggle freely
  • •Shoe doesn't slip at the heel
  • •No red marks or pressure spots after wearing
  • •Child can walk normally without tripping

✗ Time for a new size

  • •Toes pressing against the front
  • •Red marks or blisters after wearing
  • •Your child refuses to wear shoes or limps
  • •You can feel the big toe at the shoe tip
  • •Shoes difficult to put on without force

How Fast Do Baby Feet Grow?

Age 0–1 year

About ½ size every 6–8 weeks

Check fit monthly

Ages 1–3 years

About ½ size every 2–3 months

Check fit every 8–10 weeks

Ages 3–5 years

About ½ size every 3–4 months

Check fit every 12 weeks

Frequently Asked Questions

How do I measure my baby's foot for shoes?

Place your baby's foot flat on a piece of paper and trace around it. Measure from the back of the heel to the tip of the longest toe. Add 0.5–1 cm of growing room. Do this with both feet and use the larger measurement — it's normal for feet to be slightly different sizes.

How often do babies and toddlers need new shoes?

Babies' feet grow very fast — roughly half a size every 6–8 weeks in the first year, and every 2–3 months in the toddler years. Check fit every 8–10 weeks. Signs of outgrown shoes: toes rammed against the front, red marks on feet after wearing, or your child pulling at their shoes.

When should my baby start wearing shoes?

Babies don't need shoes until they are walking regularly outdoors. Before that, bare feet or soft-soled socks help develop proprioception and muscle strength. The AAP and podiatrists recommend waiting until your child is walking confidently before buying hard-soled shoes.

What's the difference between infant, toddler, and youth shoe sizes?

US infant sizes (0–4) are for non-walkers (0–12 months). Toddler sizes (4.5–10) are for new walkers through early toddlerhood. Little Kid sizes (10.5–3) cover preschool age. Big Kid or Youth sizes (1Y–6Y or ~31–39 EU) cover school age through early teens.

Do baby shoe sizes vary between brands?

Yes, significantly. Nike and Adidas tend to run wider; certain brands run narrow. Always measure your child's foot and compare to the brand's specific size chart. For online purchases, check return policies and buy from brands with free returns when sizing is uncertain.

How much growing room should be in a shoe?

There should be roughly one thumb-width (about 1–1.5 cm) between the end of the longest toe and the tip of the shoe. Enough to wiggle toes, but not so loose it causes blisters. Shoes that are too large are as problematic as shoes that are too small.

Are second-hand shoes OK for toddlers?

Pediatric podiatrists generally recommend against hand-me-down shoes for toddlers, because shoes mold to the shape and gait of the original wearer over time. For an infant who isn't walking yet, soft decorative shoes passed down are fine. For active walkers, new shoes are preferred.

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