A size 20 isn't the same size everywhere, and unlike the toddler sizes most brands cut it differently for girls and boys. Here is where all 15 brands on Little & Youth land, taken straight from each brand's own published size chart.
One kid's height, 15 different ideas of 'size 20' — and most brands cut it differently for girls and boys.
15 brands publish a girls' size 20. Every tick is a real inch, so a wider band really is a wider range.
15 brands publish a boys' size 20. Every tick is a real inch, so a wider band really is a wider range.
Enter their height and we’ll highlight every brand whose published size 20 covers it — then get their size at every brand.
Grouped by where each brand's own published height range lands. The table below is the full roster.
The whole range sits lower, so it fits a slightly shorter kid.
They land in the most common range, about ≈67".
The whole range sits higher, so it fits a taller kid.
All 15 brands that publish a size 20, shortest-cut first — 3 chart girls and boys differently and show both, and 4 publish a single height rather than a range.
A size 20 is designed with older kids and teens in mind, but age is only a rough guide. Because it is built around height and build, plenty of children wear a size 20 a year earlier or later than the label suggests. Checking your child's height against a specific brand's chart is far more reliable than going by age alone.
Most brands cut a girls' size 20 for about ≈67" and a boys' size 20 for about 67–68½", but across brands the label covers 60–69½" — that full span is the honest answer. Check your child's height against the brand you are buying.
Not always. Many brands publish one unisex size 20 that covers both, but 3 of the 15 brands here chart girls and boys separately — and where they do, the two can differ by an inch or more at the same number. The table above shows both, so you can compare the one that matches your child.
Neither, reliably — a size 20 is not standardized. Across these 15 brands it covers heights from 60 to 69½", a spread of about 9½ inches, so "big" or "small" only means anything next to a named brand.
No, and there is no industry standard that would make it so. Each brand sets its own size 20 height range, which is why the number cannot be carried from one brand to the next: the size that fits in one can be short or roomy in another under an identical label.
A size 20 is near the top of the kids’ range, and it doesn’t map cleanly onto one adult size. Adult XS, juniors and young-men’s sizing are separate systems cut for different proportions, so the number won’t carry over. If your child is at the top of a 20, measure them and compare against the specific adult or juniors chart rather than assuming a next size.
After a size 20, most brands move to adult XS / juniors sizing. Sizing can shift noticeably at that step, so it is worth checking the next size's height range rather than assuming it picks up exactly where size 20 left off.
When your child's height is near the top of a brand's published size 20 range, check that brand's adult XS / juniors sizing before buying — the next size's range doesn't always pick up where size 20 ends. We can't predict how long a garment lasts, so we point you to the boundary, not a guess.
Among the brands here, Calvin Klein Kids cuts the longest size 20, fitting up to about 69½ inches of height. That is about published height only — it says nothing about how long the garment itself lasts.
Enter your child's measurements once and Little & Youth shows the size to buy across all 100+ brands on the site — girls' or boys', size 20 or otherwise — each pulled from that brand's own published chart.
Find your child's size →