Size chart
Cat & Jack baby size chart
Cat & Jack publishes 11 baby and toddler sizes, Preemie to 4T, by weight and height. Checked against digitalcontent.target.com on October 4, 2026.
Size chart
- Preemieup to 5.5 lb
- Newborn6 to 8 lb
- 0-3M9 to 12 lb
- 3-6M12.5 to 16 lb
- 6-9M16.5 to 19.5 lb
- 12M20 to 23 lb
- 18M23.5 to 26 lb
- 24M26.5 to 28 lb
- 2T26.5 to 28 lb
- 3T28.5 to 32 lb
- 4T32.5 to 37 lb
Weight in lb, exactly as Cat & Jack publishes it.
Does Cat & Jack run small or large?
True to sizeAcross 10 size labels that other brands also use, Cat & Jack's published ranges sit close to the middle of the pack. The same label covers about the same baby.
Based on published size charts compared with other brands. This is not a fit review.
What a typical baby wears in Cat & Jack
For a baby in the middle of the WHO growth chart, with room to grow. Your baby's own measurements give a closer answer in the calculator below.
| Age | Typical weight | Typical length | Cat & Jack size |
|---|---|---|---|
| Birth | 7.3 lb | 19.5 in | Newborn |
| 3 months | 13.5 lb | 23.9 in | 3-6M |
| 6 months | 16.8 lb | 26.2 in | 6-9M |
| 9 months | 18.9 lb | 28 in | 12M |
| 12 months | 20.5 lb | 29.5 in | 12M |
| 18 months | 23.3 lb | 32.1 in | 18M |
| 2 years | 26.1 lb | 34 in | 2T |
| 3 years | 31.1 lb | 37.6 in | 3T |
The chart as published
The original wording from Cat & Jack's chart, size by size.
| Size | Weight | Height or length | Age |
|---|---|---|---|
| Preemie | up to 5.5 lb | up to 17.5 in | Not published |
| Newborn | 6-8.0 lb | 18-20 in | Not published |
| 0-3M | 9-12 lb | 20.5-23.5 in | Not published |
| 3-6M | 12.5-16 lb | 24-25.5 in | Not published |
| 6-9M | 16.5-19.5 lb | 26-27.5 in | Not published |
| 12M | 20-23 lb | 28-30.5 in | Not published |
| 18M | 23.5-26 lb | 31-32.5 in | Not published |
| 24M | 26.5-28 lb | 33-35.5 in | Not published |
| 2T | 26.5-28 lb | 33-35.5 in | Not published |
| 3T | 28.5-32 lb | 36-38.5 in | Not published |
| 4T/4 | 32.5-37 lb | 39-43 in | Not published |
Notes on this chart. From the Target size charts for Cat & Jack. The baby chart (Preemie to 24M) is merged with the toddler chart (2T to 4T/4). The toddler girls and toddler boys charts list identical height and weight. 24M and 2T are published with identical ranges.
Sources
- Brand's own site: https://digitalcontent.target.com/itemcontent/sizecharts/htmlfragments/baby-toddler-clothing/cat-jack/regular.html
- Brand's own site: https://digitalcontent.target.com/itemcontent/sizecharts/htmlfragments/baby-toddler-clothing/cat-and-jack-girls-clothing/toddler-girls.html
- Brand's own site: https://digitalcontent.target.com/itemcontent/sizecharts/htmlfragments/boys-clothing/cat-jack/toddler-boys.html
Retrieved October 4, 2026. Brands update their charts, so check the brand's page before a big purchase. This site is not affiliated with Cat & Jack.
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