Brand vs brand

OshKosh B'gosh vs Gerber Childrenswear sizes

Of OshKosh B'gosh's 9 baby and toddler sizes, 5 line up closely with a Gerber Childrenswear size, 4 are partial matches, and 0 have no clean match. Both charts list weight and height, so the comparison uses both.

Closest pairs: OshKosh B'gosh 3M = Gerber Childrenswear 0-3M, OshKosh B'gosh 6M = Gerber Childrenswear 3-6M, OshKosh B'gosh 12M = Gerber Childrenswear 12M, OshKosh B'gosh 18M = Gerber Childrenswear 18M.

OshKosh B'gosh True to sizeGerber Childrenswear 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)

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

Gerber Childrenswear

Preemie: up to 5.1 lb
Newborn: 5.1 to 7.9 lb
0-3M: 7.9 to 11.9 lb
0-6M: up to 16.1 lb
3-6M: 11.9 to 16.1 lb
6-9M: 16.1 to 20.1 lb
12M: 20.1 to 24 lb
18M: 24 to 28 lb
24M/2T: 28 to 32 lb
3T: 32 to 35.1 lb
4T: 35.1 to 39 lb

Height (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

Gerber Childrenswear

Preemie: up to 17 in
Newborn: 17 to 21 in
0-3M: 21 to 24 in
0-6M: 17 to 26 in
3-6M: 24 to 26 in
6-9M: 26 to 28 in
12M: 28 to 30 in
18M: 30 to 32 in
24M/2T: 32 to 34 in
3T: 34 to 38 in
4T: 38 to 40 in

OshKosh B'gosh size to Gerber Childrenswear size

OshKosh B'gosh	Closest Gerber Childrenswear	Match	Weight: OshKosh B'gosh / Gerber Childrenswear	Height: OshKosh B'gosh / Gerber Childrenswear
3M	0-3M	Close match	9 to 12.5 lb / 7.9 to 11.9 lb	21.5 to 24 in / 21 to 24 in
6M	3-6M	Close match	12.5 to 17 lb / 11.9 to 16.1 lb	24 to 27 in / 24 to 26 in
9M	6-9M	Partial	17 to 21 lb / 16.1 to 20.1 lb	27 to 28.5 in / 26 to 28 in
12M	12M	Close match	21 to 25 lb / 20.1 to 24 lb	28.5 to 30 in / 28 to 30 in
18M	18M	Close match	25 to 28 lb / 24 to 28 lb	30 to 32 in / 30 to 32 in
24M	24M/2T	Close match	28 to 30 lb / 28 to 32 lb	32 to 34 in / 32 to 34 in
2T	24M/2T	Partial	29 to 31 lb / 28 to 32 lb	35 to 36.5 in / 32 to 34 in
3T	3T	Partial	31 to 33 lb / 32 to 35.1 lb	36.5 to 39 in / 34 to 38 in
4T	4T	Partial	33 to 37.5 lb / 35.1 to 39 lb	39 to 41.5 in / 38 to 40 in

Gerber Childrenswear size to OshKosh B'gosh size

Gerber Childrenswear	Closest OshKosh B'gosh	Match	Weight: Gerber Childrenswear / OshKosh B'gosh	Height: Gerber Childrenswear / OshKosh B'gosh
Preemie	None	No clean match	up to 5.1 lb / n/a	up to 17 in / n/a
Newborn	None	No clean match	5.1 to 7.9 lb / n/a	17 to 21 in / n/a
0-3M	3M	Close match	7.9 to 11.9 lb / 9 to 12.5 lb	21 to 24 in / 21.5 to 24 in
0-6M	6M	Partial	up to 16.1 lb / 12.5 to 17 lb	17 to 26 in / 24 to 27 in
3-6M	6M	Close match	11.9 to 16.1 lb / 12.5 to 17 lb	24 to 26 in / 24 to 27 in
6-9M	9M	Partial	16.1 to 20.1 lb / 17 to 21 lb	26 to 28 in / 27 to 28.5 in
12M	12M	Close match	20.1 to 24 lb / 21 to 25 lb	28 to 30 in / 28.5 to 30 in
18M	18M	Close match	24 to 28 lb / 25 to 28 lb	30 to 32 in / 30 to 32 in
24M/2T	24M	Close match	28 to 32 lb / 28 to 30 lb	32 to 34 in / 32 to 34 in
3T	3T	Partial	32 to 35.1 lb / 31 to 33 lb	34 to 38 in / 36.5 to 39 in
4T	4T	Partial	35.1 to 39 lb / 33 to 37.5 lb	38 to 40 in / 39 to 41.5 in

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Size

What is that in

Every OshKosh B'gosh size in Gerber Childrenswear

Close match

OshKosh B'gosh 3M lines up closely with Gerber Childrenswear 0-3M.

Weight (lb)

OshKosh B'gosh 3M 9 to 12.5 lb

Gerber Childrenswear 0-3M 7.9 to 11.9 lb

Gerber Childrenswear 0-6M up to 16.1 lb

Gerber Childrenswear 3-6M 11.9 to 16.1 lb

Height (in)

OshKosh B'gosh 3M 21.5 to 24 in

Gerber Childrenswear 0-3M 21 to 24 in

Gerber Childrenswear 0-6M 17 to 26 in

Gerber Childrenswear 3-6M 24 to 26 in

The shaded column is the OshKosh B'gosh range. Bars show what each brand publishes for the size.

Based on published size charts. OshKosh B'gosh chart and Gerber Childrenswear chart.

More comparisons

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