Brand vs brand

Old Navy vs Burt's Bees Baby sizes

Of Old Navy's 10 baby and toddler sizes, 5 line up closely with a Burt's Bees Baby size, 4 are partial matches, and 1 has no clean match. Both charts list weight and height, so the comparison uses both.

Closest pairs: Old Navy 0-3M = Burt's Bees Baby 0-3M, Old Navy 3-6M = Burt's Bees Baby 3-6M, Old Navy 6-9M = Burt's Bees Baby 6-9M, Old Navy 6-12M = Burt's Bees Baby 6-9M.

Watch the labels: Old Navy 0-3M is closer to Burt's Bees Baby 0-3M than to Burt's Bees Baby's own 0-3M; Old Navy 3-6M is closer to Burt's Bees Baby 3-6M than to Burt's Bees Baby's own 3-6M; Old Navy 6-9M is closer to Burt's Bees Baby 6-9M than to Burt's Bees Baby's own 6-9M.

Old Navy True to sizeBurt's Bees Baby 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)

Old Navy

Up to 7 lb: up to 6.6 lb
0-3M: 6.6 to 13.2 lb
3-6M: 13.2 to 17.6 lb
6-9M: 17.6 to 19.8 lb
6-12M: 17.6 to 22 lb
12-18M: 22 to 24.3 lb
18-24M: 24.3 to 26.5 lb
2T: 26.5 to 28.7 lb
3T: 28.7 to 33.1 lb
4T: 33.1 to 35.3 lb

Burt's Bees Baby

Preemie: up to 6 lb
Newborn: 6 to 9 lb
0-3M: 9 to 12.6 lb
3-6M: 12.6 to 17 lb
6-9M: 17 to 20.9 lb
12M: 20.9 to 24.9 lb
18M: 24.9 to 28 lb
24M: 28 to 30 lb
2T: 29 to 31 lb
3T: 31 to 33 lb
4T: 34 to 37.5 lb

Height (in)

Old Navy

Up to 7 lb: up to 21.7 in
0-3M: 21.7 to 24 in
3-6M: 24 to 26.4 in
6-9M: 26.4 to 29.1 in
6-12M: 26.4 to 29.1 in
12-18M: 29.1 to 31.5 in
18-24M: 31.5 to 33.9 in
2T: 33.9 to 36.2 in
3T: 36.2 to 39 in
4T: 39 to 42.1 in

Burt's Bees Baby

Preemie: up to 16.9 in
Newborn: up to 21.7 in
0-3M: 21.7 to 24 in
3-6M: 24 to 26.4 in
6-9M: 26.4 to 28.3 in
12M: 28.3 to 30.7 in
18M: 30.7 to 32.7 in
24M: 32.7 to 33.9 in
2T: 35 to 36.5 in
3T: 36.5 to 39 in
4T: 39 to 41.5 in

Old Navy size to Burt's Bees Baby size

Old Navy	Closest Burt's Bees Baby	Match	Weight: Old Navy / Burt's Bees Baby	Height: Old Navy / Burt's Bees Baby
Up to 7 lb	Newborn	Partial	up to 6.6 lb / 6 to 9 lb	up to 21.7 in / up to 21.7 in
0-3M	0-3M	Close match	6.6 to 13.2 lb / 9 to 12.6 lb	21.7 to 24 in / 21.7 to 24 in
3-6M	3-6M	Close match	13.2 to 17.6 lb / 12.6 to 17 lb	24 to 26.4 in / 24 to 26.4 in
6-9M	6-9M	Close match	17.6 to 19.8 lb / 17 to 20.9 lb	26.4 to 29.1 in / 26.4 to 28.3 in
6-12M	6-9M	Close match	17.6 to 22 lb / 17 to 20.9 lb	26.4 to 29.1 in / 26.4 to 28.3 in
12-18M	12M	Partial	22 to 24.3 lb / 20.9 to 24.9 lb	29.1 to 31.5 in / 28.3 to 30.7 in
18-24M	18M	Partial	24.3 to 26.5 lb / 24.9 to 28 lb	31.5 to 33.9 in / 30.7 to 32.7 in
2T	2T	No clean match	26.5 to 28.7 lb / 29 to 31 lb	33.9 to 36.2 in / 35 to 36.5 in
3T	3T	Close match	28.7 to 33.1 lb / 31 to 33 lb	36.2 to 39 in / 36.5 to 39 in
4T	4T	Partial	33.1 to 35.3 lb / 34 to 37.5 lb	39 to 42.1 in / 39 to 41.5 in

Burt's Bees Baby size to Old Navy size

Burt's Bees Baby	Closest Old Navy	Match	Weight: Burt's Bees Baby / Old Navy	Height: Burt's Bees Baby / Old Navy
Preemie	Up to 7 lb	No clean match	up to 6 lb / up to 6.6 lb	up to 16.9 in / up to 21.7 in
Newborn	Up to 7 lb	Partial	6 to 9 lb / up to 6.6 lb	up to 21.7 in / up to 21.7 in
0-3M	0-3M	Close match	9 to 12.6 lb / 6.6 to 13.2 lb	21.7 to 24 in / 21.7 to 24 in
3-6M	3-6M	Close match	12.6 to 17 lb / 13.2 to 17.6 lb	24 to 26.4 in / 24 to 26.4 in
6-9M	6-12M	Close match	17 to 20.9 lb / 17.6 to 22 lb	26.4 to 28.3 in / 26.4 to 29.1 in
12M	12-18M	Partial	20.9 to 24.9 lb / 22 to 24.3 lb	28.3 to 30.7 in / 29.1 to 31.5 in
18M	18-24M	Partial	24.9 to 28 lb / 24.3 to 26.5 lb	30.7 to 32.7 in / 31.5 to 33.9 in
24M	18-24M	Partial	28 to 30 lb / 24.3 to 26.5 lb	32.7 to 33.9 in / 31.5 to 33.9 in
2T	3T	Partial	29 to 31 lb / 28.7 to 33.1 lb	35 to 36.5 in / 36.2 to 39 in
3T	3T	Close match	31 to 33 lb / 28.7 to 33.1 lb	36.5 to 39 in / 36.2 to 39 in
4T	4T	Partial	34 to 37.5 lb / 33.1 to 35.3 lb	39 to 41.5 in / 39 to 42.1 in

Try it

Compare any size

I know the size in

Size

What is that in

Every Old Navy size in Burt's Bees Baby

Close match

Old Navy 0-3M lines up closely with Burt's Bees Baby 0-3M.

Weight (lb)

Old Navy 0-3M 6.6 to 13.2 lb

Burt's Bees Baby Newborn 6 to 9 lb

Burt's Bees Baby 0-3M 9 to 12.6 lb

Burt's Bees Baby 3-6M 12.6 to 17 lb

Height (in)

Old Navy 0-3M 21.7 to 24 in

Burt's Bees Baby Newborn up to 21.7 in

Burt's Bees Baby 0-3M 21.7 to 24 in

Burt's Bees Baby 3-6M 24 to 26.4 in

The shaded column is the Old Navy range. Bars show what each brand publishes for the size.

Based on published size charts. Old Navy chart and Burt's Bees Baby chart.

More comparisons

Charts retrieved October 4, 2026 (Old Navy) and October 4, 2026 (Burt's Bees Baby). Sources are listed on each brand page. This site is not affiliated with either brand.