Guess
Here’s how Guess fits your child compared to other brands you might be considering, so you know before it’s in your cart.
Find your child’s size in Guess
Enter your child’s measurements once — we’ll size them in Guess and at 100+ other brands, each from that brand’s own published chart. Height and weight are required; add chest, waist, hips and inseam to sharpen the fit.
Your child wears one size in Guess. What should you buy elsewhere?
Pick the size your child wears at Guess to see which brands have the same label and measurements (twins) and which run shorter or longer (strangers) — based on each brand’s own chart.
Show the full cross-brand table (every size)
| Guess | Size twinssame number fits the same | Size strangerssame number, different cut |
|---|---|---|
| 0/3M0–23.5" | — | H&M Kids↑ longerEddie Bauer↑ longerJacadi↑ longerTommy Hilfiger Kids↑ longerAdidas Kids↑ longerPetit Bateau↑ longer+10 more |
| 3/6M24–26.5" | ||
| 6/9M27–28.5" | Il Gufo↓ shorter | |
| 12M29–30.5" | ||
| 18M31–32.5" | ||
| 24M33–34.5" | New Balance Kids↑ longer | |
| 2T33–35.5" | H&M Kids↑ longer | |
| 3T36–38.5" | None — consistent across brands | |
| 4 (S)39–41.5" | ||
| 5 (M)42–44.5" | Il Gufo↓ shorter | |
| 6 (M)45–46.5" | ||
| 6x (L)47–48.5" | None — consistent across brands | |
| 7 (S)49–51" | Converse Kids↓ shorterLevi's Kids↓ shorterNext Kids↓ shorterMonica + Andy↓ shorterU.S. Polo Assn.↓ shorterMagnetic Me↓ shorter+6 more | |
| 8 (S)51.5–53" | Il Gufo↓ shorterBonpoint↓ shorterU.S. Polo Assn.↓ shorterNext Kids↓ shorterMini Mioche↓ shorterJacadi↓ shorter+10 more | |
| 10 (M)53.5–55" | Noralee↑ longerIl Gufo↓ shorterConverse Kids↑ longerLevi's Kids↑ longerGarnet Hill↑ longerHanna Andersson↑ longer+6 more | |
| 12 (M)55.5–57.5" | Noralee↑ longerRylee + Cru↑ longerMayoral↑ longerHanna Andersson↑ longerJacadi↑ longerMagnetic Me↑ longer+18 more | |
| 14 (L)58–60" | Petit Bateau↑ longerLacoste Kids↑ longerMini Mioche↑ longerMonica + Andy↑ longerRylee + Cru↑ longerConverse Kids↑ longer+16 more | |
| 16 (XL)60.5–62.5" | Petit Bateau↑ longerAppaman↑ longerLacoste Kids↑ longerConverse Kids↑ longerLevi's Kids↑ longerIl Gufo↑ longer+3 more | |
| 18 (L)64.5–66" | Justice↓ shorterWalmart Wonder Nation↓ shorterCat & Jack↓ shorterPetit Bateau↑ longerTommy Hilfiger Kids↓ shorterColumbia Kids↓ shorter+6 more | |
| 20 (XL)66.5–68" | Justice↓ shorterWalmart Wonder Nation↓ shorterLands' End Kids↓ shorterReebok Kids↓ shorterMacy's Epic Threads↓ shorterKohl's SO↓ shorter+2 more |
Sizes shown use Guess’ girls’/unisex chart where the brand splits by gender; boys’ sizes at the same number can run slightly taller.
In short
Where the number just works. At 3T, 6x (L), Guess lines up with every brand we track — the size carries straight over.
Where labels drift. The exceptions are the “strangers” above — e.g. at size 6 (M), Bonpoint, Il Gufo, Converse Kids cut the same number differently. Check those before you trust the label.
Bottom line: for most sizes, a Guess number is a safe bet elsewhere — measure once, then double-check only the handful of “stranger” brands above.
Curious about a size that isn’t your child’s here? Every size, compared across every brand, lives here: Browse all size comparisons →
Fit & the transitions that trip parents up
Guess-specific things the size number alone won’t tell you — drawn from its own charts.
Go by the height-and-weight chart
There isn’t enough shopper feedback to call a fit lean either way — the reviews that exist say it fits as labelled — and Guess sizes on height and weight, so measure your child and match the chart.
Boys and girls are charted separately
Guess charts boys and girls on separate ladders, so size by the matching line rather than the number alone.
Specialty & inclusive fits
Which trimmer, roomier, or adaptive cuts Guess publishes alongside its standard sizes.
What shoppers say about the fit
Community consensus
Shopper opinion · not Little & Youth’s measurementThis is what parents report anecdotally — crowd sentiment, not a Little & Youth determination. Our sizing above is computed from Guess’ own published chart; the notes here come from public parent discussion.
There is not enough shopper discussion to call a fit direction for GUESS Kids — the handful of reviews we found say it fits as labelled, so use the brand’s height-and-weight chart. GUESS’s own site carries no product reviews on the kids’ range, the line barely comes up on Reddit or parent forums, and the licensed GUESS kids pieces sold through Amazon have only a few dozen ratings each. What exists is consistent but thin: a parent of a 10-year-old says the boys’ logo tee ‘fits perfectly’, buyers of the girls’ logo leggings in sizes 14 and 16 say they ‘fit great’ while noting the fabric is thinner than some brands, and nobody reports needing to size up or down. Treat this as provisional: the kids’ sizes follow standard US numeric sizing on a height/weight chart, with inseam given for big girls, so measure rather than guess from age.
Based on anecdotal discussion from multiple publicly available online sources; your experience may differ.
Should you buy Guess?
Consider it if…
- You want logo-led, fashion-forward kids' pieces — rhinestone logo tees, varsity jackets, wide-leg jeans and puffers that mirror the adult GUESS look.
- You are buying on sale or through Amazon — the licensed logo tees and leggings sold on Amazon are the pieces with any review track record, and buyers rate them well.
- You want a broad numeric size run — 0/3M through 20 (XL), with the big-girls chart giving inseam as well as height and weight.
Think twice if…
- You need a proven fit read before ordering online — with no on-site reviews and almost no parent discussion, there is no crowd-sourced sizing guidance; order two sizes or buy where returns are easy.
- You are price-sensitive — premium logo pricing for everyday tees and jeans.
- You want heavyweight basics — the one recurring material note is that the girls' leggings are on the thin side.
Skip the cross-referencing — let Little & Youth do it.
Enter your child’s measurements once. We’ll show their Guess size and their size at 100+ other brands, each from that brand’s own chart.
Find my child’s size →Shop Guess ↗A few things parents ask that the chart won’t tell you
Does GUESS Kids run small or big?
We could not find enough shopper reports to say. The few Amazon reviewers who mention fit say the boys' logo tee and girls' logo leggings fit as sized, with no size-up or size-down advice. GUESS's own site has no reviews on kids' products, so measure your child against the height/weight chart.
Are GUESS Kids clothes on Amazon the same as on guess.com?
The Amazon listings are GUESS-branded kids' tees, leggings and jackets sold under license; they carry the same numeric sizing but are not necessarily the same styles as the guess.com kids' collection. Reviews on those listings are the only shopper fit data available.
What measurements do I need to size Guess accurately?
Guess publishes height, weight, inseam in its size chart. Height is the primary driver on this chart.
Do Guess boys’ and girls’ sizes fit the same?
From the bigger sizes up, Guess publishes separate girls’ and boys’ charts, so the same number can differ by gender. The figures on this page use Guess’ girls’/unisex chart.
Where do I buy Guess?
Guess is sold on its own site and on Amazon, so you can pick the marketplace you prefer.