Baby Onesie Size Chart
Inches
| Size Label | Length | Width | Fits weight (lbs) |
| 3-6m | 20 - 25 | 9 3/8 | 12 - 16 |
| 6-12m | 25 - 28 | 9 7/8 | 16 - 22 |
| 12-18m | 28 - 30 | 10 3/8 | 22 - 27 |
| 18-24m | 30 - 32 | 10 7/8 | 27 - 30 |
Centimeters
| Size Label | Length | Width | Fits weight (lbs) |
| 3-6m | 50.8 - 63.5 | 23.8 | 12 - 16 |
| 6-12m | 63.5 - 71 | 25 | 16 - 22 |
| 12-18m | 71 - 76.2 | 26.4 | 22 - 27 |
| 18-24m | 76.2 - 81.3 | 27.6 | 27 - 30 |