| Newborn | Birth - 9 lbs |
| 3 Months | 9 lbs - 13 lbs |
| 6 Months | 13 lbs - 18 lbs |
| 9 Months | 19 lbs - 22 lbs |
| 12 Months | Approx 22 lbs |
| 18 Months | Approx 25 lbs |
| 24 Months |
Approx 28 lbs |
| 2 Years |
28 lbs - 33 lbs |
| 3 Years | 33 lbs - 38 lbs |
| 4 Years | 37 lbs - 42 lbs |
| 5 Years | 41 lbs - 45 lbs |
| 6 Years | 44 lbs - 52 lbs |
| 7 Years | 50 lbs - 56 lbs |
| 8 Years | 54 lbs - 60 lbs |