Why Kids' Shoe Sizing Matters More
Children's feet grow 1-2 sizes per year until age 6, then about 1 size per year until 12. Shoes that are too small can cause lasting foot problems. Too large means tripping and blisters.
Kids' Shoe Size by Age (Average)
| Age | Foot Length (cm) | US Size | EU Size | UK Size |
|---|---|---|---|---|
| 1 year | 12.0 | 4C | 19 | 3 |
| 2 years | 14.0 | 7C | 23 | 6 |
| 3 years | 15.5 | 9C | 26 | 8.5 |
| 4 years | 17.0 | 10.5C | 28 | 10 |
| 5 years | 18.5 | 12C | 30 | 11.5 |
| 6 years | 19.5 | 13C | 31 | 12.5 |
| 7 years | 20.5 | 1Y | 33 | 13 |
| 8 years | 21.5 | 2Y | 34 | 1 |
| 10 years | 23.0 | 4Y | 36 | 3 |
| 12 years | 24.5 | 6Y | 38.5 | 5 |
These are averages. Always measure — children vary significantly at the same age.
How to Measure Kids' Feet
- Stand them up — never measure while sitting or lying down.
- Foot on paper — trace around the foot with a pen held straight.
- Measure from heel to longest toe — in centimeters.
- Add 10-15mm — growing room. Children need more space than adults.
- Check every 2-3 months — especially ages 2-6 when growth is fastest.
Get Your Child's Size
Enter foot length and see sizes across Nike Kids, Adidas Kids, New Balance Kids, and more.
Find Kids' Size →The Thumb Test
With the child standing in the shoe, press your thumb on the front. There should be about one thumb's width (12-15mm) between the longest toe and the shoe tip. Less than that = too small. More than that = too big.
Signs the Shoes Are Too Small
- Red marks on toes or top of foot
- Child resists putting shoes on
- Walking on tiptoes or stumbling
- Blisters or calluses
- Curled toes inside the shoe
Best Kids' Shoe Brands for Sizing
| Brand | Sizing | Width | Notes |
|---|---|---|---|
| Nike Kids | True to size | Standard-Narrow | Wide feet may need to size up |
| New Balance Kids | True to size | Wide options (W, XW) | Best for wide kids' feet |
| Adidas Kids | True to size | Standard | Good all-around fit |
| Skechers Kids | Runs slightly large | Standard-Wide | Affordable, easy on/off |
| Stride Rite | True to size | Wide options | Best for toddlers and first walkers |
Kids' Size Passport
One measurement. Your child's exact size in every kids' brand. Free, instant.
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