Sizing
Sizing Charts

| Age (months): |
Length: |
| 0-6 months |
4.2 in/10.7 cm |
| 6-9 months |
4.5 in/11.5 cm |
| 9-12 months |
4.8 in/12.3 cm |
| 12-18 months |
5.2 in/13.1 cm
|
| 18-24 months |
5.5 in/13.9 cm |

- EU Size
- US Size
- Australian
- Inside Length
- Approximate Age
- 19
- 3
- 2
- 4.5 inches/11.5 cm
- 6-9 months
- 20
- 4
- 3
- 4.8 inches/12.3 cm
- 9-12 months
- 21
- 5
- 4
- 5.2 in/13.1 cm
- 12-18 months
- 22
- 6
- 5
- 5.5 in/13.9 cm
- 18-24 months
- 23
- 7
- 6
- 5.8 in/14.7 cm
- 2 years
- 24
- 8
- 7
- 6.1 in/15.5 cm
- 2.5 years
- 25
- 9
- 8
- 6.4 in/16.3 cm
- 3 years

- EU Size
- US Size
- Australian
- Inside Length
- Approximate Age
- 24
- 8
- 7
- 6.1 inches/15.5 cm
- 2.5 - 3 years
- 24
- 8.5
- 7.5
- 6.3 inches/15.9 cm
- 2.5 - 3 years
- 25
- 9
- 8
- 6.4 inches/16.3 cm
- 3 - 3.5 years
- 26
- 9.5
- 8.5
- 6.6 inches/16.7 cm
- 3 - 3.5 years
- 27
- 10
- 9
- 6.7 inches/17.1 cm
- 3.5 - 4 years
- 28
- 10.5
- 9.5
- 6.9 inches/17.5 cm
- 3.5 - 4 years
- 29
- 11
- 10
- 7 inches/17.9 cm
- 4 - 4.5 years
- 29
- 11.5
- 10.5
- 7.2 inches/18.3 cm
- 4 - 4.5 years
- 30
- 12
- 11
- 7.4 inches/18.7 cm
- 5 - 5.5 years
- 30
- 12.5
- 11.5
- 7.5 inches/19.1 cm
- 5 - 5.5 years
- 31
- 13
- 12
- 7.7 inches/19.5 cm
- 5.6 - 6 years
Printable Sizing Chart
Click here to print the sizing chart for Smaller, See Kai Run and Kai (make sure you print it out at 100% for accurate sizing) and use it to find out the best size for your child.
How to Size Your Child's Feet:
- Have your child stand on a piece of paper. Mark the longest points of the foot, from the longest toe to the back of the heel. Measure this distance in centimeters to get the length.
- Allow .5 - 1 cm extra when selecting shoe size, more if the child will wear thick socks with the shoes.
- Measure often - children's feet grow quickly. Measure at least every 2 months during the first year, and every 3 months from 1 - 3 years. You never can tell when your child will have a growth spurt!