Sizing Tips

Kids’ shoe sizing tips and advice

Kids' shoe sizes can be confusing to navigate. Unlike clothing sizes, your child's shoe size doesn't correspond to their age, unless they're a baby. Baby shoes are listed by age in month. However, you should still measure their feet, since some little ones grow faster than others!

Once your child graduates into kid-size shoes, the sizing system switches to numbers. Sizes 3.5 to 10 are considered little kid shoes. From Size 10.5 onward, you're into big kid sizes. When your big kid outgrows their size 13.5 kids' shoes, the system changes again to adult sizing, and you'll be shopping for a pair of size 1s.

How often to measure kids’ feet

Did you know that children's feet can grow half a size every 2 to 4 months? While this average varies depending on age, you should measure your kid's feet every two months to ensure their shoes are fitting well.

What to do if your kid is between sizes

If your child is between sizes or one foot is bigger than the other, always buy the bigger size. You don't want either foot to be cramped or squished inside their shoes.

Stress-free shopping

To avoid shopping headaches, refer to the size charts for kids' shoes below. Regardless of age, our shoe sizes are always measured according to the current length and width of your kid's feet.

Checking the fit

Got the right size? Use our fit guide to learn more about fitting kids' shoes and how to make sure those small, growing feet are properly protected.

Size Charts

Shoes & Socks

Little Kids

Length Circumference
Size (US) Inches/Centimeters Medium Wide Extra-Wide
1 3.58 / 9.1 4.48 / 11.4 NA NA
2 (3-6 Months) 3.89 / 9.9 4.76 / 12.1 NA NA
3 (6-9 Months) 4.25 / 10.8 4.76 / 12.1 5.00 / 12.7 5.19 / 13.2
3.5 4.40 / 11.2 4.88 / 12.4 5.11 / 13.0 5.31 / 13.5
4 (9-12 Months) 4.56 / 11.6 5.00 / 12.7 5.23 / 13.3 5.43 / 13.8
4.5 4.72 / 12.0 5.11 / 13.0 5.39 / 13.7 5.55 / 14.1
5 4.92 / 12.5 5.23 / 13.3 5.51 / 14.0 5.66 / 14.4
5.5 5.07 / 12.9 5.39 / 13.7 5.62 / 14.3 5.82 / 14.8
6 5.23 / 13.3 5.51 / 14.0 5.74 / 14.6 5.94 / 15.1
6.5 5.39 / 13.7 5.62 / 14.3 5.86 / 14.9 6.06 / 15.4
7 5.55 / 14.1 5.74 / 14.6 5.98 / 15.2 6.18 / 15.7
7.5 5.74 / 14.6 5.86 / 14.9 6.14 / 15.6 6.29 / 16.0
8 5.90 / 15.0 5.98 / 15.2 6.25 / 15.9 6.45 / 16.4
8.5 6.06 / 15.4 6.14 / 15.6 6.37 / 16.2 6.57 / 16.7
9 6.22 / 15.8 6.25 / 15.9 6.49 / 16.5 6.69 / 17.0
9.5 6.41 / 16.3 6.37 / 16.2 6.61 / 16.8 6.81 / 17.3
10 6.57 / 16.7 6.49 / 16.5 6.73 / 17.1 6.92 / 17.6

Big Kids

Length Circumference
Size (US) Inches/Centimeters Medium Wide Extra-Wide
10.5 6.73 / 17.1 6.61 / 16.8 6.88 / 17.5 7.04 / 17.9
11 6.88 / 17.5 6.73 / 17.1 7.00 / 17.8 7.20 / 18.3
11.5 7.08 / 18.0 6.88 / 17.5 7.12 / 18.1 7.32 / 18.6
12 7.24 / 18.4 7.00 / 17.8 7.24 / 18.4 7.44 / 18.9
12.5 7.40 / 18.8 7.12 / 18.1 7.32 / 18.7 7.55 / 19.2
13 7.55 / 19.2 7.24 / 18.4 7.51 / 19.1 7.67 / 19.5
13.5 7.71 / 19.6 7.36 / 18.7 7.63 / 19.4 7.79 / 19.8
1 7.91 / 20.1 7.51 / 19.1 7.75 / 19.7 7.95 / 20.2
1.5 8.07 / 20.5 7.63 / 19.4 7.87 / 20.0 8.07 / 20.5
2 8.22 / 20.9 7.75 / 19.7 7.99 / 20.3 8.18 / 20.8
2.5 8.38 / 21.3 7.87 / 20.0 8.11 / 20.6 8.30 / 21.1
3 8.58 / 21.8 7.99 / 20.3 8.26 / 21.0 8.42 / 21.4
3.5 8.74 / 22.2 8.11 / 20.6 8.38 / 21.3 8.54 / 21.7
4 8.89 / 22.6 8.26 / 21.0 8.50 / 21.6 8.70 / 22.1
4.5 9.05 / 23.0 8.38 / 21.3 8.62 / 21.9 8.81 / 22.4
5 9.25 / 23.5 8.50 / 21.6 8.74 / 22.2 8.93 / 22.7
5.5 9.40 / 23.9 8.62 / 21.9 8.85 / 22.5 9.05 / 23.0
6 9.56 / 24.3 8.74 / 22.2 9.01 / 22.9 9.17 / 23.3
6.5 9.72 / 24.7 8.85 / 22.5 9.13 / 23.2 9.33 / 23.7
7 9.88 / 25.1 9.01 / 22.9 9.25 / 23.5 9.44 / 24.0