| Boys | Height (cm) | Weight (kg) | Waist (cm) | KoreaSize (height-waist) |
|---|---|---|---|---|
| 5/6 | 110-122 | 19-26 | 53-57 | 120-57 |
| 7/8 | 122-135 | 24-31 | 57-61 | 130-61 |
| 9/10 | 135-145 | 29-36 | 61-65 | 140-64 |
| 11/12 | 145-152 | 33-41 | 65-69 | 150-66 |
| 13/14 | 152-160 | 37-46 | 69-72 | 155-69 |
| 15/16 | 160-165 | 42-51 | 72-76 | 160-72 |
| 17/18 | 160-165 | 46-57 | 76-81 | 160-76 |