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Kids' sizing, brand by brand · Little & Youth

What is a size 12?How girls' and boys' size 12 compare across 39 kids' brands

A size 12 isn't the same everywhere — and unlike toddler sizes, most brands cut it differently for girls and boys. Here's where the brands on Little & Youth land with each, taken straight from every brand's own published size chart.

The short answer: At a size 12, a typical girls' fit lands about 55–58" tall and a typical boys' fit about 56–58". Many brands publish one unisex size 12 that covers both, but where a brand splits them the girls' and boys' cuts can differ by an inch or more. All told, the same "size 12" is used for kids from 54 to 61 inches tall across brands — so the label alone can't tell you the fit.

Jump to: Girls' · Boys'

Girls' size 12, brand by brand

38 brands on Little & Youth publish a girls' size 12. Grouped by where each brand's published height range sits.

Where each group of brands puts a girls' size 12

The bands shift to the right as brands cut a girls' 12 for taller kids.

Shorter-cut
55–57"
Typical
55–58"
Longer-cut
56–61"
55" 57" 59" 61"
Height (inches)

1 brand run a little shorter

These brands cut their size 12 a little smaller — the whole range sits lower — so it fits a slightly shorter or leaner kid. Worth a look if your child runs small for their age.

H&M Kids.

25 brands are typical

These brands land right in the most common range, about 55–58" — the way most brands cut a size 12.

Justice, Walmart Wonder Nation, Bombas Kids, Champion Kids, Children's Place, Columbia Kids, Crocs Kids, L.L. Bean Kids, Skechers Kids, Stride Rite, The North Face Kids, Vans Kids, Brooks Brothers Kids, Carter's, French Toast, Gymboree, Little Planet by Carter's, Mini Mioche, Target Cat & Jack, Calvin Klein Kids, Polo Ralph Lauren Kids, Appaman, Fabletics, Primary, and Tea Collection.

12 brands run a little longer

These brands cut their size 12 a little bigger — the whole range sits higher — so it fits a taller kid, and it often lasts longer before it's outgrown. Worth a look if your child runs tall.

Eddie Bauer, Kohl's Jumping Beans, JCPenney Thereabouts, Levi's Kids, Macy's Epic Threads, Lee Jeans, OshKosh B'gosh, Gap Kids, Garnet Hill, Old Navy, Lands' End Kids, and Converse Kids.

Girls' size 12 height ranges across 38 brands (inches).
BrandGirls' 12 fitsHow it runs
H&M Kids55–57"Shorter
Justice55½–57½"Typical
Walmart Wonder Nation55½–57½"Typical
Bombas Kids55–58"Typical
Champion Kids55–58"Typical
Children's Place55–58"Typical
Columbia Kids55–58"Typical
Crocs Kids55–58"Typical
L.L. Bean Kids55–58"Typical
Skechers Kids55–58"Typical
Stride Rite55–58"Typical
The North Face Kids55–58"Typical
Vans Kids55–58"Typical
Brooks Brothers Kids55½–58"Typical
Carter's56–58"Typical
French Toast56–58"Typical
Gymboree56–58"Typical
Little Planet by Carter's56–58"Typical
Mini Mioche56–58"Typical
Target Cat & Jack56–58"Typical
Eddie Bauer58–58"Longer
Calvin Klein Kids56–58½"Typical
Polo Ralph Lauren Kids56½–58½"Typical
Appaman55–59"Typical
Fabletics56–59"Typical
Primary56–59"Typical
Tea Collection56–59"Typical
Kohl's Jumping Beans56½–59"Longer
JCPenney Thereabouts57–59"Longer
Levi's Kids57–59"Longer
Macy's Epic Threads57–59"Longer
Lee Jeans56½–59½"Longer
OshKosh B'gosh56–60"Longer
Gap Kids57–60"Longer
Garnet Hill57–60"Longer
Old Navy57–60"Longer
Lands' End Kids58–60"Longer
Converse Kids58–61"Longer

Boys' size 12, brand by brand

38 brands on Little & Youth publish a boys' size 12. Grouped by where each brand's published height range sits.

Where each group of brands puts a boys' size 12

The bands shift to the right as brands cut a boys' 12 for taller kids.

Shorter-cut
54–57"
Typical
56–58"
Longer-cut
56–60"
54" 56" 58" 60"
Height (inches)

2 brands run a little shorter

These brands cut their size 12 a little smaller — the whole range sits lower — so it fits a slightly shorter or leaner kid. Worth a look if your child runs small for their age.

Converse Kids and H&M Kids.

25 brands are typical

These brands land right in the most common range, about 56–58" — the way most brands cut a size 12.

Original Penguin Junior, Bombas Kids, Brooks Brothers Kids, Champion Kids, Columbia Kids, Crocs Kids, L.L. Bean Kids, Skechers Kids, Stride Rite, The North Face Kids, Vans Kids, Kohl's Jumping Beans, Carter's, Gymboree, Little Planet by Carter's, Mini Mioche, Walmart Wonder Nation, Children's Place, French Toast, Polo Ralph Lauren Kids, Appaman, Calvin Klein Kids, Fabletics, Primary, and Tea Collection.

11 brands run a little longer

These brands cut their size 12 a little bigger — the whole range sits higher — so it fits a taller kid, and it often lasts longer before it's outgrown. Worth a look if your child runs tall.

Eddie Bauer, JCPenney Thereabouts, Lands' End Kids, Levi's Kids, Target Cat & Jack, Macy's Epic Threads, OshKosh B'gosh, Gap Kids, Garnet Hill, Lee Jeans, and Old Navy.

Boys' size 12 height ranges across 38 brands (inches).
BrandBoys' 12 fitsHow it runs
Converse Kids54–57"Shorter
H&M Kids55–57"Shorter
Original Penguin Junior56–57½"Typical
Bombas Kids55–58"Typical
Brooks Brothers Kids55–58"Typical
Champion Kids55–58"Typical
Columbia Kids55–58"Typical
Crocs Kids55–58"Typical
L.L. Bean Kids55–58"Typical
Skechers Kids55–58"Typical
Stride Rite55–58"Typical
The North Face Kids55–58"Typical
Vans Kids55–58"Typical
Kohl's Jumping Beans55½–58"Typical
Carter's56–58"Typical
Gymboree56–58"Typical
Little Planet by Carter's56–58"Typical
Mini Mioche56–58"Typical
Walmart Wonder Nation56–58"Typical
Children's Place55½–58½"Typical
French Toast56–58½"Typical
Polo Ralph Lauren Kids56½–58½"Typical
Eddie Bauer58½–58½"Longer
Appaman55–59"Typical
Calvin Klein Kids56–59"Typical
Fabletics56–59"Typical
Primary56–59"Typical
Tea Collection56–59"Typical
JCPenney Thereabouts57–59"Longer
Lands' End Kids57–59"Longer
Levi's Kids57–59"Longer
Target Cat & Jack56–59½"Longer
Macy's Epic Threads57–59½"Longer
OshKosh B'gosh56–60"Longer
Gap Kids57–60"Longer
Garnet Hill57–60"Longer
Lee Jeans57–60"Longer
Old Navy57–60"Longer

Common questions about size 12

Does a size 12 run big or small?

It depends on the brand and whether it's cut for a girl or a boy. A girls' size 12 runs bigger at Converse Kids, Lands' End Kids, and Old Navy and smaller at H&M Kids, Bombas Kids, and Champion Kids. A boys' size 12 runs bigger at Old Navy, Lee Jeans, and Garnet Hill and smaller at Converse Kids, H&M Kids, and Bombas Kids. Most brands land in between.

Is a girls' size 12 the same as a boys' size 12?

Not always. Many brands publish one unisex size 12, but brands that split them cut the two a little differently — a girls' 12 typically fits about 55–58" and a boys' 12 about 56–58". If a brand offers both, check the one that matches your child.

What height is a size 12 for?

At most brands, a size 12 fits a child roughly 55–58" (girls) or 56–58" (boys) tall. Because height is what actually determines fit, it's worth checking your child's height against the specific brand's size 12 rather than going by age.

What age is a size 12 for?

A size 12 is designed with 12-year-olds in mind, but age is only a rough guide. Because it's built around height and build, plenty of kids wear a size 12 a year earlier or later than the label suggests — checking height against a specific brand's chart is far more reliable.

What size comes after size 12?

After a size 12, most brands move to a size 14. Sizing can shift noticeably at that step, so it's worth checking the next size's height range rather than assuming it picks up where size 12 left off.

Stop guessing which size 12 fits. Let Little & Youth do it.

Enter your child's measurements once and Little & Youth shows the size to buy across all 90+ brands on the site — girls' or boys', size 12 or otherwise — each pulled from that brand's own published chart.

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Their Measurements. Right Size. Brand by Brand.
How we know this is accurate. Every size 12 height range on this page is transcribed from that brand's own published US size chart — no estimates. Where a brand publishes one unisex size 12, it appears under both girls' and boys'. Brands update their charts, so always confirm against the brand's live chart before you buy. Little & Youth is independent and not affiliated with any brand listed. Figures verified 2026-08-24.