Kids shoe size chart
On Nike's published chart a 2-year-old typically wears a 6C, and big kid sizes run from 1Y to 7Y. Children's sizes have no single standard, so this page uses that maker's chart and says so.
Kids shoe size chart: the tool
Kids shoe size from foot length
Have the child stand with full weight on a sheet of paper, heel against a wall, and measure to the tip of the longest toe.
How to measure
Kids and infant shoe size chart by foot length
| US kids | Foot (in) | Foot (cm) | UK | EU | JP (cm) | Typical age |
|---|---|---|---|---|---|---|
| 1C | 3.5625 | 9 | 0.5 | 16 | 7 | 3 months |
| 2C | 3.9375 | 10 | 1.5 | 17 | 8 | 6 months |
| 3C | 4.25 | 10.8 | 2.5 | 18.5 | 9 | 9 months |
| 4C | 4.5625 | 11.6 | 3.5 | 19.5 | 10 | 12 months |
| 5C | 4.9375 | 12.5 | 4.5 | 21 | 11 | 18 months |
| 6C | 5.25 | 13.3 | 5.5 | 22 | 12 | 24 months |
| 7C | 5.5625 | 14.1 | 6.5 | 23.5 | 13 | 36 months |
| 8C | 5.9375 | 15.1 | 7.5 | 25 | 14 | |
| 9C | 6.25 | 15.9 | 8.5 | 26 | 15 | |
| 10C | 6.5625 | 16.7 | 9.5 | 27 | 16 | |
| 10.5C | 6.75 | 17.1 | 10 | 27.5 | 16.5 | |
| 11C | 6.9375 | 17.6 | 10.5 | 28 | 17 | |
| 11.5C | 7.0625 | 17.9 | 11 | 28.5 | 17.5 | |
| 12C | 7.25 | 18.4 | 11.5 | 29.5 | 18 | |
| 12.5C | 7.4375 | 18.9 | 12 | 30 | 18.5 | |
| 13C | 7.5625 | 19.2 | 12.5 | 31 | 19 | |
| 13.5C | 7.75 | 19.7 | 13 | 31.5 | 19.5 | |
| 1Y | 7.9375 | 20.2 | 13.5 | 32 | 20 | |
| 1.5Y | 8.0625 | 20.5 | 1 | 33 | 20.5 | |
| 2Y | 8.25 | 21 | 1.5 | 33.5 | 21 | |
| 2.5Y | 8.4375 | 21.4 | 2 | 34 | 21.5 | |
| 3Y | 8.5625 | 21.7 | 2.5 | 35 | 22 | |
| 3.5Y | 8.75 | 22.2 | 3 | 35.5 | 22.5 | |
| 4Y | 8.8125 | 22.4 | 3.5 | 36 | 23 | |
| 4.5Y | 8.9375 | 22.7 | 4 | 36.5 | 23.5 | |
| 5Y | 9.125 | 23.2 | 4.5 | 37.5 | 23.5 | |
| 5.5Y | 9.25 | 23.5 | 5 | 38 | 24 | |
| 6Y | 9.375 | 23.8 | 5.5 | 38.5 | 24 | |
| 6.5Y | 9.5625 | 24.3 | 6 | 39 | 24.5 | |
| 7Y | 9.6875 | 24.6 | 6 | 40 | 25 |
Leave room to grow
The foot lengths above are the foot each size is meant for. Measure again every few months while children are growing, and check the fit with the child standing.
Related tools
Questions
What does C mean in kids shoe sizes?
C stands for child (toddler and little kid sizes, 1C to 13.5C). After 13.5C the scale restarts at 1Y (youth) for big kids.
What size shoe does a 2-year-old wear?
On Nike's chart, 6C is listed at 24 months. Children vary a lot, so measure the foot rather than going by age.
How do kids sizes convert to women's?
On Nike's big kids chart, youth sizes are about 1.5 sizes below women's: 5Y is a women's 6.5.
Sources
- Wikipedia: Shoe size (checked 2026-10-02)
- Nike: Kids' Shoe Size Chart (checked 2026-10-02)
Last checked: 5 October 2026