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Kids' Clothing Size Chart by Age and Height

Quick answer

Buy kids' clothes by height, not age. A 4-year-old is typically 98-104 cm (39-41 in), which is US size 4 and EU 104. If your child is between sizes, choose the larger one.

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Kids' clothing sizes by age

Heights are approximate; EU sizes equal height in cm.

Kids' clothing sizes by age
AgeHeight (cm)Height (in)US / EU size
NewbornUp to 55 cmUp to 22 in-
0-3 months56-62 cm22-24 in56-62
3-6 months62-68 cm24-27 in62-68
6-12 months68-80 cm27-31 in68-80
12-18 months80-86 cm31-34 in80-86
2 years86-92 cm34-36 in2T / 92
3 years92-98 cm36-39 in3T / 98
4 years98-104 cm39-41 in4 / 104
5 years104-110 cm41-43 in5 / 110
6 years110-116 cm43-46 in6 / 116
8 years122-128 cm48-50 in8 / 128
10 years134-140 cm53-55 in10 / 140
12 years146-152 cm57-60 in12 / 152
14 years158-164 cm62-65 in14 / 164

How to measure a child

  1. Height: stand against a wall, barefoot, and mark the top of the head.
  2. Chest: around the fullest part under the arms.
  3. Waist: around the natural waist above the navel.
  4. Inseam: crotch to ankle.

Measure with a soft measuring tape and re-check every 3 months for under-3s.

Frequently asked questions

Should I buy by age or height?
Height. Age labels are only a guide.
What is EU size 104?
A child about 104 cm tall, roughly US 4.
How fast do kids outgrow clothes?
Babies change size every 2-3 months, and school-age children about every 6-12 months.

Related guides

Sources and further reading