Use the chart below to determine your child's size based on length, weight and average age.
| AGE IN MONTHS | US TODDLER SIZE | CHEST (in.) | WAIST (in) | HIPS (in) | HEIGHT (in.) |
|---|---|---|---|---|---|
| NEWBORN | - | 14.5 | 15.5 | 15.5 | 20-22 |
| 3M | - | 16.5 | 17 | 17 | 22-24.5 |
| 6M | - | 17.5 | 18 | 18 | 24.5-26.5 |
| 9M | - | 18 | 18.5 | 18.5 | 26.5-29 |
| 12M | - | 18.5 | 19 | 19 | 29-31.5 |
| 18M | - | 19.5 | 19.75 | 20 | 31.5-34 |
| 24M | 2T | 20.5 | 20.5 | 21 | 34-36 |
| 2–3 YRS | 3T | 21 | 21 | 21.5 | 36-38.5 |
| 3–4 YRS | 4T | 22 | 21.5 | 22.5 | 38.5-41 |
| AGE IN MONTHS | US TODDLER SIZE | CHEST (cm) | WAIST (cm) | HIPS (in) | HEIGHT (cm) |
|---|---|---|---|---|---|
| NEWBORN | - | 37 | 39 | 39 | 50-56 |
| 3M | - | 42 | 43 | 43 | 56-62 |
| 6M | - | 44 | 46 | 46 | 62-68 |
| 9M | - | 46 | 47 | 47 | 68-74 |
| 12M | - | 47 | 48 | 48 | 74-80 |
| 18M | - | 50 | 50 | 51 | 80-86 |
| 24M | 2T | 52 | 52 | 53 | 86-92 |
| 2–3 YRS | 3T | 53 | 53 | 54.5 | 92-98 |
| 3–4 YRS | 4T | 56 | 54.5 | 57 | 98-104 |