Brand vs brand

Cat & Jack vs OshKosh B'gosh sizes

Of Cat & Jack's 11 baby and toddler sizes, 3 line up closely with a OshKosh B'gosh size, 6 are partial matches, and 2 have no clean match. Both charts list weight and height, so the comparison uses both.

Closest pairs: Cat & Jack 0-3M = OshKosh B'gosh 3M, Cat & Jack 3-6M = OshKosh B'gosh 6M, Cat & Jack 4T = OshKosh B'gosh 4T.

Watch the labels: Cat & Jack 24M is closer to OshKosh B'gosh 18M than to OshKosh B'gosh's own 24M; Cat & Jack 2T is closer to OshKosh B'gosh 18M than to OshKosh B'gosh's own 2T.

Cat & Jack True to sizeOshKosh B'gosh True to size

Based on published size charts compared with other brands.

Size by size, on one scale

Each block is one size, placed where the brand's chart puts it. Blocks that sit above each other fit the same baby.

Weight (lb)

Cat & Jack

Preemie: up to 5.5 lb
Newborn: 6 to 8 lb
0-3M: 9 to 12 lb
3-6M: 12.5 to 16 lb
6-9M: 16.5 to 19.5 lb
12M: 20 to 23 lb
18M: 23.5 to 26 lb
24M: 26.5 to 28 lb
2T: 26.5 to 28 lb
3T: 28.5 to 32 lb
4T: 32.5 to 37 lb

OshKosh B'gosh

3M: 9 to 12.5 lb
6M: 12.5 to 17 lb
9M: 17 to 21 lb
12M: 21 to 25 lb
18M: 25 to 28 lb
24M: 28 to 30 lb
2T: 29 to 31 lb
3T: 31 to 33 lb
4T: 33 to 37.5 lb

Height (in)

Cat & Jack

Preemie: up to 17.5 in
Newborn: 18 to 20 in
0-3M: 20.5 to 23.5 in
3-6M: 24 to 25.5 in
6-9M: 26 to 27.5 in
12M: 28 to 30.5 in
18M: 31 to 32.5 in
24M: 33 to 35.5 in
2T: 33 to 35.5 in
3T: 36 to 38.5 in
4T: 39 to 43 in

OshKosh B'gosh

3M: 21.5 to 24 in
6M: 24 to 27 in
9M: 27 to 28.5 in
12M: 28.5 to 30 in
18M: 30 to 32 in
24M: 32 to 34 in
2T: 35 to 36.5 in
3T: 36.5 to 39 in
4T: 39 to 41.5 in

Cat & Jack size to OshKosh B'gosh size

Cat & Jack	Closest OshKosh B'gosh	Match	Weight: Cat & Jack / OshKosh B'gosh	Height: Cat & Jack / OshKosh B'gosh
Preemie	None	No clean match	up to 5.5 lb / n/a	up to 17.5 in / n/a
Newborn	None	No clean match	6 to 8 lb / n/a	18 to 20 in / n/a
0-3M	3M	Close match	9 to 12 lb / 9 to 12.5 lb	20.5 to 23.5 in / 21.5 to 24 in
3-6M	6M	Close match	12.5 to 16 lb / 12.5 to 17 lb	24 to 25.5 in / 24 to 27 in
6-9M	9M	Partial	16.5 to 19.5 lb / 17 to 21 lb	26 to 27.5 in / 27 to 28.5 in
12M	12M	Partial	20 to 23 lb / 21 to 25 lb	28 to 30.5 in / 28.5 to 30 in
18M	18M	Partial	23.5 to 26 lb / 25 to 28 lb	31 to 32.5 in / 30 to 32 in
24M	18M	Partial	26.5 to 28 lb / 25 to 28 lb	33 to 35.5 in / 30 to 32 in
2T	18M	Partial	26.5 to 28 lb / 25 to 28 lb	33 to 35.5 in / 30 to 32 in
3T	3T	Partial	28.5 to 32 lb / 31 to 33 lb	36 to 38.5 in / 36.5 to 39 in
4T	4T	Close match	32.5 to 37 lb / 33 to 37.5 lb	39 to 43 in / 39 to 41.5 in

OshKosh B'gosh size to Cat & Jack size

OshKosh B'gosh	Closest Cat & Jack	Match	Weight: OshKosh B'gosh / Cat & Jack	Height: OshKosh B'gosh / Cat & Jack
3M	0-3M	Close match	9 to 12.5 lb / 9 to 12 lb	21.5 to 24 in / 20.5 to 23.5 in
6M	3-6M	Close match	12.5 to 17 lb / 12.5 to 16 lb	24 to 27 in / 24 to 25.5 in
9M	6-9M	Partial	17 to 21 lb / 16.5 to 19.5 lb	27 to 28.5 in / 26 to 27.5 in
12M	12M	Partial	21 to 25 lb / 20 to 23 lb	28.5 to 30 in / 28 to 30.5 in
18M	18M	Partial	25 to 28 lb / 23.5 to 26 lb	30 to 32 in / 31 to 32.5 in
24M	3T	No clean match	28 to 30 lb / 28.5 to 32 lb	32 to 34 in / 36 to 38.5 in
2T	3T	Partial	29 to 31 lb / 28.5 to 32 lb	35 to 36.5 in / 36 to 38.5 in
3T	3T	Partial	31 to 33 lb / 28.5 to 32 lb	36.5 to 39 in / 36 to 38.5 in
4T	4T	Close match	33 to 37.5 lb / 32.5 to 37 lb	39 to 41.5 in / 39 to 43 in

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Size

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Every Cat & Jack size in OshKosh B'gosh

Close match

Cat & Jack 0-3M lines up closely with OshKosh B'gosh 3M.

Weight (lb)

Cat & Jack 0-3M 9 to 12 lb

OshKosh B'gosh 3M 9 to 12.5 lb

Height (in)

Cat & Jack 0-3M 20.5 to 23.5 in

OshKosh B'gosh 3M 21.5 to 24 in

The shaded column is the Cat & Jack range. Bars show what each brand publishes for the size.

Based on published size charts. Cat & Jack chart and OshKosh B'gosh chart.

More comparisons

Charts retrieved October 4, 2026 (Cat & Jack) and October 4, 2026 (OshKosh B'gosh). Sources are listed on each brand page. This site is not affiliated with either brand.