Brand vs brand

Carter's vs Nike sizes

Of Carter's 12 baby and toddler sizes, 3 line up closely with a Nike size, 7 are partial matches, and 2 have no clean match. Both charts list weight and height, so the comparison uses both.

Closest pairs: Carter's Newborn = Nike Newborn/0-3M, Carter's 3T = Nike 3T, Carter's 4T = Nike 4T.

Watch the labels: Carter's 2T is closer to Nike 24M than to Nike's own 2T.

Carter's True to sizeNike Runs large

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

Nike

Newborn/0-3M: 6 to 9.5 lb
3M: 9.9 to 14.6 lb
6M: 15 to 17.9 lb
9M: 18.3 to 22 lb
12M: 22.5 to 24.9 lb
18M: 25.6 to 28 lb
24M: 28.4 to 30 lb
2T: 28.4 to 30 lb
3T: 30.4 to 33.1 lb
4T: 34 to 37.9 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

Nike

Newborn/0-3M: 19.7 to 22 in
3M: 22 to 24.4 in
6M: 24.4 to 26.8 in
9M: 26.8 to 29.1 in
12M: 29.1 to 31.5 in
18M: 31.5 to 33.9 in
24M: 33.9 to 36.2 in
2T: 33.9 to 36.2 in
3T: 36.2 to 38.6 in
4T: 38.6 to 40.9 in

Carter's size to Nike size

Carter's	Closest Nike	Match	Weight: Carter's / Nike	Height: Carter's / Nike
Up to 5 lb	None	No clean match	up to 5 lb / n/a	up to 17 in / n/a
Preemie	Newborn/0-3M	No clean match	up to 6 lb / 6 to 9.5 lb	up to 18 in / 19.7 to 22 in
Newborn	Newborn/0-3M	Close match	6 to 9 lb / 6 to 9.5 lb	18 to 21.5 in / 19.7 to 22 in
3M	3M	Partial	9 to 12.5 lb / 9.9 to 14.6 lb	21.5 to 24 in / 22 to 24.4 in
6M	6M	Partial	12.5 to 17 lb / 15 to 17.9 lb	24 to 27 in / 24.4 to 26.8 in
9M	9M	Partial	17 to 21 lb / 18.3 to 22 lb	27 to 28.5 in / 26.8 to 29.1 in
12M	12M	Partial	21 to 25 lb / 22.5 to 24.9 lb	28.5 to 30 in / 29.1 to 31.5 in
18M	18M	Partial	25 to 28 lb / 25.6 to 28 lb	30 to 32 in / 31.5 to 33.9 in
24M	24M	Partial	28 to 30 lb / 28.4 to 30 lb	32 to 34 in / 33.9 to 36.2 in
2T	24M	Partial	29 to 31 lb / 28.4 to 30 lb	35 to 36.5 in / 33.9 to 36.2 in
3T	3T	Close match	31 to 33 lb / 30.4 to 33.1 lb	36.5 to 39 in / 36.2 to 38.6 in
4T	4T	Close match	33 to 37.5 lb / 34 to 37.9 lb	39 to 41.5 in / 38.6 to 40.9 in

Nike size to Carter's size

Nike	Closest Carter's	Match	Weight: Nike / Carter's	Height: Nike / Carter's
Newborn/0-3M	Newborn	Close match	6 to 9.5 lb / 6 to 9 lb	19.7 to 22 in / 18 to 21.5 in
3M	3M	Partial	9.9 to 14.6 lb / 9 to 12.5 lb	22 to 24.4 in / 21.5 to 24 in
6M	6M	Partial	15 to 17.9 lb / 12.5 to 17 lb	24.4 to 26.8 in / 24 to 27 in
9M	9M	Partial	18.3 to 22 lb / 17 to 21 lb	26.8 to 29.1 in / 27 to 28.5 in
12M	12M	Partial	22.5 to 24.9 lb / 21 to 25 lb	29.1 to 31.5 in / 28.5 to 30 in
18M	18M	Partial	25.6 to 28 lb / 25 to 28 lb	31.5 to 33.9 in / 30 to 32 in
24M	2T	Partial	28.4 to 30 lb / 29 to 31 lb	33.9 to 36.2 in / 35 to 36.5 in
2T	2T	Partial	28.4 to 30 lb / 29 to 31 lb	33.9 to 36.2 in / 35 to 36.5 in
3T	3T	Close match	30.4 to 33.1 lb / 31 to 33 lb	36.2 to 38.6 in / 36.5 to 39 in
4T	4T	Close match	34 to 37.9 lb / 33 to 37.5 lb	38.6 to 40.9 in / 39 to 41.5 in

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Every Carter's size in Nike

Close match

Carter's Newborn lines up closely with Nike Newborn/0-3M.

Weight (lb)

Carter's Newborn 6 to 9 lb

Nike Newborn/0-3M 6 to 9.5 lb

Height (in)

Carter's Newborn 18 to 21.5 in

Nike Newborn/0-3M 19.7 to 22 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 Nike chart.

More comparisons

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