From Grade School to Infant sizing, correct size conversions can vary depending on the brand of sneaker you are shopping for. Size charts are typically not applicable to every brand, which is why we are making it easier. Here are kids size conversion charts for the most popular sneaker brands on StockX.
Nike Kids Size Chart
| US | 1C | 2C | 3C | 4C | 5C | 6C | 7C | 8C | 9C | 10C | 10.5C | 11C | 11.5C | 12C | 12.5C | 13C | 13.5C | 1Y | 1.5Y | 2Y | 2.5Y | 3Y | 3.5Y | 4Y | 4.5Y | 5Y | 5.5Y | 6Y | 6.5Y | 7Y |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UK | 0.5 | 1.5 | 2.5 | 3.5 | 4.5 | 5.5 | 6.5 | 7.5 | 8.5 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 13.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6 |
| EU | 16 | 17 | 18.5 | 19.5 | 21 | 22 | 23.5 | 25 | 26 | 27 | 27.5 | 28 | 28.5 | 29.5 | 30 | 31 | 31.5 | 32 | 33 | 33.5 | 34 | 35 | 35.5 | 36 | 36.5 | 37.5 | 38 | 38.5 | 39 | 40 |
| JP | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 16.5 | 17 | 17.5 | 18 | 18.5 | 19 | 19.5 | 20 | 20.5 | 21 | 21.5 | 22 | 22.5 | 23 | 23.5 | 23.5 | 24 | 24 | 24.5 | 25 |
| KR | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 | 160 | 165 | 170 | 175 | 180 | 185 | 190 | 195 | 200 | 205 | 210 | 215 | 220 | 225 | 230 | 235 | 235 | 240 | 240 | 245 | 250 |
Jordan Kids Size Chart
| US | 1C | 2C | 3C | 4C | 5C | 6C | 7C | 8C | 9C | 10C | 10.5C | 11C | 11.5C | 12C | 12.5C | 13C | 13.5C | 1Y | 1.5Y | 2Y | 2.5Y | 3Y | 3.5Y | 4Y | 4.5Y | 5Y | 5.5Y | 6Y | 6.5Y | 7Y |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UK | 0.5 | 1.5 | 2.5 | 3.5 | 4.5 | 5.5 | 6.5 | 7.5 | 8.5 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 13.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6 |
| EU | 16 | 17 | 18.5 | 19.5 | 21 | 22 | 23.5 | 25 | 26 | 27 | 27.5 | 28 | 28.5 | 29.5 | 30 | 31 | 31.5 | 32 | 33 | 33.5 | 34 | 35 | 35.5 | 36 | 36.5 | 37.5 | 38 | 38.5 | 39 | 40 |
| JP | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 16.5 | 17 | 17.5 | 18 | 18.5 | 19 | 19.5 | 20 | 20.5 | 21 | 21.5 | 22 | 22.5 | 23 | 23.5 | 23.5 | 24 | 24 | 24.5 | 25 |
| KR | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 | 160 | 165 | 170 | 175 | 180 | 185 | 190 | 195 | 200 | 205 | 210 | 215 | 220 | 225 | 230 | 235 | 235 | 240 | 240 | 245 | 250 |
adidas Kids Size Chart
| US | 1K | 2K | 3K | 4K | 5K | 5.5K | 6K | 6.5K | 7K | 7.5K | 8K | 8.5K | 9K | 9.5K | 10K | 10.5K | 11K | 11.5K | 12K | 12.5K | 13K | 13.5K | 1Y | 1.5Y | 2Y | 2.5Y | 3Y | 3.5Y | 4Y | 4.5Y | 5Y | 5.5Y | 6Y | 6.5Y | 7Y | 7.5Y |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UK | 0K | 1K | 2K | 3K | 4K | 5K | 5.5K | 6K | 6.5K | 7K | 7.5K | 8K | 8.5K | 9K | 9.5K | 10K | 10.5K | 11K | 11.5K | 12K | 12.5K | 13K | 13.5K | 1Y | 1.5Y | 2Y | 2.5Y | 3Y | 3.5Y | 4Y | 4.5Y | 5Y | 5.5Y | 6Y | 6.5Y | 7Y |
| EU | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 23.5 | 24 | 25 | 25.5 | 26 | 26.5 | 27 | 28 | 28.5 | 29 | 30 | 30.5 | 31 | 31.5 | 32 | 33 | 33.5 | 34 | 35 | 35.5 | 36 | 36 2/3 | 37 1/3 | 38 | 38 2/3 | 39 1/3 | 40 | 40 2/3 |
| JP | 9 | 10 | 11 | 12 | 12.5 | 12.5 | 13 | 13.5 | 14 | 14 | 14.5 | 15 | 15.5 | 16 | 16.5 | 16.5 | 17 | 17.5 | 18 | 18.5 | 19 | 19.5 | 19.5 | 20 | 20.5 | 21 | 21.5 | 22 | 22.5 | 23 | 23.5 | 24 | 24.5 | 25 | 25.5 | 26 |
| KR | 90 | 100 | 110 | 120 | 125 | 125 | 130 | 135 | 140 | 140 | 145 | 150 | 155 | 160 | 165 | 165 | 170 | 175 | 180 | 185 | 190 | 195 | 195 | 200 | 205 | 210 | 215 | 220 | 225 | 230 | 235 | 240 | 245 | 250 | 255 | 260 |
