Kids Shoe Sizes
Age does not determine a purchase size. This is Nike’s US kids chart, checked on 5 September 2026. C/Y labels belong to the children’s scale. Nike instructs choosing the larger listed size between measurements; we do not extrapolate beyond its table.
| Foot length (mm) | Nike US C/Y |
|---|---|
| 91 | 1C |
| 100 | 2C |
| 108 | 3C |
| 116 | 4C |
| 125 | 5C |
| 133 | 6C |
| 142 | 7C |
| 150 | 8C |
| 159 | 9C |
| 167 | 10C |
| 176 | 11C |
| 184 | 12C |
| 193 | 13C |
| 201 | 1Y |
| 205 | 1.5Y |
| 209 | 2Y |
| 214 | 2.5Y |
| 218 | 3Y |
| 222 | 3.5Y |
| 224 | 4Y |
| 227 | 4.5Y |
| 232 | 5Y |
| 235 | 5.5Y |
| 238 | 6Y |
| 243 | 6.5Y |
| 246 | 7Y |
Nike youth and women's labels
These are exact cross-labels in Nike's US women's chart. They do not establish the same shoe shape, materials, width or fit for a youth and an adult pair. C sizes and other brands are outside this lookup.
Official Nike women's chart · US scope · Source checked .
| US youth | US women | US men cross-label | EU |
|---|---|---|---|
| 2Y | 3.5 | 2 | 33.5 |
| 2.5Y | 4 | 2.5 | 34.5 |
| 3Y | 4.5 | 3 | 35 |
| 3.5Y | 5 | 3.5 | 35.5 |
| 4Y | 5.5 | 4 | 36 |
| 4.5Y | 6 | 4.5 | 36.5 |
| 5Y | 6.5 | 5 | 37.5 |
| 5.5Y | 7 | 5.5 | 38 |
| 6Y | 7.5 | 6 | 38.5 |
| 6.5Y | 8 | 6.5 | 39 |
| 7Y | 8.5 | 7 | 40 |
Measure both feet
Measure both feet while standing, in the socks you intend to wear. Keep the heel against a wall, mark the longest toe and measure the heel-to-toe distance in millimetres. Use the longer measurement with the exact manufacturer chart.
A Brannock device also measures heel-to-ball (arch) length and reads width relative to the selected size. A paper length measurement does not capture all of these quantities. We have no comparative accuracy study, so we do not rank these methods or assign numerical error margins.
For a printable ruler, use 100% scale and check the printed reference against a physical ruler before measuring. Incorrect scaling changes every result. Do not add a universal toe allowance to a manufacturer foot-length chart.
Official source
- Nike: measuring foot length — Source checked:
- Brannock: instructions and fitting tips — Source checked: