Brand vs brand

Carter's vs OshKosh B'gosh sizes

Of Carter's 12 baby and toddler sizes, 9 line up closely with a OshKosh B'gosh size, 0 are partial matches, and 3 have no clean match. Both charts list weight and height, so the comparison uses both.

Closest pairs: Carter's 3M = OshKosh B'gosh 3M, Carter's 6M = OshKosh B'gosh 6M, Carter's 9M = OshKosh B'gosh 9M, Carter's 12M = OshKosh B'gosh 12M.

Carter's 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)

Carter's

Up to 5 lb: up to 5 lb
Preemie: up to 6 lb
Newborn: 6 to 9 lb
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

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)

Carter's

Up to 5 lb: up to 17 in
Preemie: up to 18 in
Newborn: 18 to 21.5 in
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

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

Carter's size to OshKosh B'gosh size

Carter's	Closest OshKosh B'gosh	Match	Weight: Carter's / OshKosh B'gosh	Height: Carter's / OshKosh B'gosh
Up to 5 lb	None	No clean match	up to 5 lb / n/a	up to 17 in / n/a
Preemie	None	No clean match	up to 6 lb / n/a	up to 18 in / n/a
Newborn	None	No clean match	6 to 9 lb / n/a	18 to 21.5 in / n/a
3M	3M	Close match	9 to 12.5 lb / 9 to 12.5 lb	21.5 to 24 in / 21.5 to 24 in
6M	6M	Close match	12.5 to 17 lb / 12.5 to 17 lb	24 to 27 in / 24 to 27 in
9M	9M	Close match	17 to 21 lb / 17 to 21 lb	27 to 28.5 in / 27 to 28.5 in
12M	12M	Close match	21 to 25 lb / 21 to 25 lb	28.5 to 30 in / 28.5 to 30 in
18M	18M	Close match	25 to 28 lb / 25 to 28 lb	30 to 32 in / 30 to 32 in
24M	24M	Close match	28 to 30 lb / 28 to 30 lb	32 to 34 in / 32 to 34 in
2T	2T	Close match	29 to 31 lb / 29 to 31 lb	35 to 36.5 in / 35 to 36.5 in
3T	3T	Close match	31 to 33 lb / 31 to 33 lb	36.5 to 39 in / 36.5 to 39 in
4T	4T	Close match	33 to 37.5 lb / 33 to 37.5 lb	39 to 41.5 in / 39 to 41.5 in

OshKosh B'gosh size to Carter's size

OshKosh B'gosh	Closest Carter's	Match	Weight: OshKosh B'gosh / Carter's	Height: OshKosh B'gosh / Carter's
3M	3M	Close match	9 to 12.5 lb / 9 to 12.5 lb	21.5 to 24 in / 21.5 to 24 in
6M	6M	Close match	12.5 to 17 lb / 12.5 to 17 lb	24 to 27 in / 24 to 27 in
9M	9M	Close match	17 to 21 lb / 17 to 21 lb	27 to 28.5 in / 27 to 28.5 in
12M	12M	Close match	21 to 25 lb / 21 to 25 lb	28.5 to 30 in / 28.5 to 30 in
18M	18M	Close match	25 to 28 lb / 25 to 28 lb	30 to 32 in / 30 to 32 in
24M	24M	Close match	28 to 30 lb / 28 to 30 lb	32 to 34 in / 32 to 34 in
2T	2T	Close match	29 to 31 lb / 29 to 31 lb	35 to 36.5 in / 35 to 36.5 in
3T	3T	Close match	31 to 33 lb / 31 to 33 lb	36.5 to 39 in / 36.5 to 39 in
4T	4T	Close match	33 to 37.5 lb / 33 to 37.5 lb	39 to 41.5 in / 39 to 41.5 in

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Size

What is that in

Every Carter's size in OshKosh B'gosh

Close match

Carter's 3M lines up closely with OshKosh B'gosh 3M.

Weight (lb)

Carter's 3M 9 to 12.5 lb

OshKosh B'gosh 3M 9 to 12.5 lb

Height (in)

Carter's 3M 21.5 to 24 in

OshKosh B'gosh 3M 21.5 to 24 in

The shaded column is the Carter's range. Bars show what each brand publishes for the size.

Based on published size charts. Carter's chart and OshKosh B'gosh chart.

More comparisons

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