A 3T isn't the same size everywhere. At most brands a 3T fits a child roughly 36½ to 38½ inches tall — but some brands cut their 3T shorter, and some cut it longer. Here's where the 40 brands on Little & Youth land with their 3T, taken straight from each brand's own published size chart.
One toddler's height, 40 different ideas of '3T.'
The bands shift to the right as brands cut their 3T for taller kids.
Grouped by where each brand's published 3T height range lands.
These brands cut their 3T a little smaller — the whole range sits lower — so it fits a slightly shorter or leaner toddler. Worth a look if your child runs small for their age.
Macy's Epic Threads, Macy's First Impressions, Walmart Wonder Nation, Amazon Essentials Kids, Calvin Klein Kids, Under Armour Kids, JCPenney Thereabouts, Original Penguin Junior, and Gerber Childrenswear.
These brands land right in the most common range, about 36½–38½" — the way most brands cut a 3T.
French Toast, Guess, Nautica, Target Cat & Jack, Burt's Bees Baby, Champion Kids, Columbia Kids, Crocs Kids, Kohl's Jumping Beans, L.L. Bean Kids, OshKosh B'gosh, Skechers Kids, Stride Rite, The North Face Kids, Vans Kids, Appaman, Fabletics, H&M Kids, Little Sleepies, Old Navy, Puma Kids, Vineyard Vines Kids, abercrombie kids, babyGap, Carter's, Gymboree, Little Planet by Carter's, Mini Mioche, and Otter Avenue.
These brands cut their 3T a little bigger — the whole range sits higher — so it fits a taller toddler, and it often lasts longer before it's outgrown. Worth a look if your child runs tall.
Eddie Bauer and Polo Ralph Lauren Kids.
All 40 brands on Little & Youth that publish a 3T, sorted from the shortest-cut to the longest. Every figure is that brand's own published 3T height range.
| Brand | 3T fits (height) | How its 3T runs |
|---|---|---|
| Macy's Epic Threads | 34–37½" | Shorter |
| Macy's First Impressions | 34–37½" | Shorter |
| Walmart Wonder Nation | 34–37½" | Shorter |
| Amazon Essentials Kids | 35–38" | Shorter |
| Calvin Klein Kids | 35–38" | Shorter |
| Under Armour Kids | 35–38" | Shorter |
| JCPenney Thereabouts | 36–38" | Shorter |
| Original Penguin Junior | 36–38" | Shorter |
| French Toast | 37–38" | Typical |
| Eddie Bauer | 38–38" | Longer |
| Gerber Childrenswear | 34–38½" | Shorter |
| Guess | 36–38½" | Typical |
| Nautica | 36–38½" | Typical |
| Target Cat & Jack | 36–38½" | Typical |
| Burt's Bees Baby | 36½–38½" | Typical |
| Champion Kids | 36½–38½" | Typical |
| Columbia Kids | 36½–38½" | Typical |
| Crocs Kids | 36½–38½" | Typical |
| Kohl's Jumping Beans | 36½–38½" | Typical |
| L.L. Bean Kids | 36½–38½" | Typical |
| OshKosh B'gosh | 36½–38½" | Typical |
| Skechers Kids | 36½–38½" | Typical |
| Stride Rite | 36½–38½" | Typical |
| The North Face Kids | 36½–38½" | Typical |
| Vans Kids | 36½–38½" | Typical |
| Appaman | 36–39" | Typical |
| Fabletics | 36–39" | Typical |
| H&M Kids | 36–39" | Typical |
| Little Sleepies | 36–39" | Typical |
| Old Navy | 36–39" | Typical |
| Puma Kids | 36–39" | Typical |
| Vineyard Vines Kids | 36–39" | Typical |
| abercrombie kids | 36–39" | Typical |
| babyGap | 36–39" | Typical |
| Carter's | 36½–39" | Typical |
| Gymboree | 36½–39" | Typical |
| Little Planet by Carter's | 36½–39" | Typical |
| Mini Mioche | 36½–39" | Typical |
| Otter Avenue | 36½–39" | Typical |
| Polo Ralph Lauren Kids | 37–39½" | Longer |
It depends on the brand. A 3T runs a little big at Polo Ralph Lauren Kids, Otter Avenue, and Mini Mioche, where it fits up to 39½ inches. A 3T runs a little small at Macy's Epic Threads, Macy's First Impressions, and Walmart Wonder Nation. Most brands land in between, fitting a child about 36½–38½" tall.
At most brands, a 3T fits a toddler roughly 36½–38½" tall. A few brands stretch a 3T up to 39½ inches. Because height is what actually determines fit, it's worth checking your child's height against the specific brand's 3T rather than going by age.
No. A 3T is not standardized — the same "3T" is used for kids from 34 to 39½ inches tall depending on the brand. That's why a 3T that fits perfectly in one brand can be too short or too roomy in the next.
Usually a 3T and a 3 cover a similar height, but a 3T is cut fuller through the middle for a toddler still in diapers or pull-ups, while a plain size 3 is cut for an older, leaner child. Many brands offer one or the other, which is part of why sizes jump around between labels.
A 3T is designed with 3-year-olds in mind, but age is only a rough guide. Because a 3T is built around height and build, plenty of children wear a 3T a year earlier or later than the label suggests. Checking your child's height against a specific brand's 3T is far more reliable than going by age alone.
After a 3T, most brands move to a 4T. Sizing can shift noticeably at that step, so it's worth checking the next size's height range rather than assuming it picks up exactly where the 3T left off.
Among the brands here, Polo Ralph Lauren Kids cuts the longest 3T, fitting up to about 39½ inches. The other longer-cut brands reach the upper end of the range too. Those are good brands to look at if your child is at the tall end of a 3T and you want the outfit to last.
All else equal, that comes down to how wide a brand's 3T size band is — how many inches of height it's built to cover. Gerber Childrenswear has the widest 3T (about 4½ inches of height), with Macy's Epic Threads and Macy's First Impressions close behind, so it tends to give the most room to grow. The narrowest 3T bands — around 1 inches — are at French Toast, so a child may move out of those a bit sooner. Real-world life also depends on your child's growth spurts and how well a piece holds up, but the size band is a solid all-else-equal starting point.
Enter your child's measurements once and Little & Youth shows the size to buy across all 90+ brands on the site — 3T or otherwise — each pulled from that brand's own published chart.
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