Size Guides & Resources
Expert guides to help you find the perfect fit for your kids
Does Kids Clothing Run Big or Small? 30+ Brands Tested
We measured 30+ kids' clothing size charts so you don't have to. The honest, data-backed answer — and the real reason sizing feels inconsistent across brands.
Amazon Essentials Kids Size Chart 2026 — Clothing & Shoes Guide
Amazon Essentials sizing explained — from baby through big kids, including the 4T vs 4 gap, size 6x, and full shoe chart with foot lengths. Find your child’s size instantly with our free size finder.
Best Kids Clothing Brands for Slim, Husky & Plus Sizes (US 2026)
Which US kids' clothing brands actually carry Slim, Husky, and Plus sizes — and how much do they differ? Honest breakdown of Carter’s, OshKosh, Cat & Jack, Lands’ End, Wonder Nation and more.
Primary Kids Size Chart 2026 — Does It Run Small, Large, or Just Different?
Primary kids clothing sizes 2–14 explained: no "T" suffix, intentionally wide ranges, gender-neutral sizing. Full baby and kids size chart with height and weight, plus why Primary fits so differently from Carter’s or Gap.
Uniqlo Kids Size Chart 2026 — Does Uniqlo Run Small?
Uniqlo kids size chart with free size finder. Full measurement tables for sizes 80–160, plus why Uniqlo runs small and slim, and how to size the Ultra Light Down jacket correctly.
George at Asda Size Chart 2026 — Kids & Baby Clothing Guide
George at Asda size chart with free size finder. Full baby, toddler and kids (up to 14 years) measurement tables. Why George runs generous in the waist and short in the leg, and how it compares to Next, Primark and M&S.
Tu (Sainsbury's) Kids Size Chart 2026 — Boys, Girls & School Uniform
Complete Tu kids size chart for boys and girls from baby to age 18, including shoes. Plus the truth about whether Tu actually runs big, and the three trouser fits most parents miss.
Does Tesco F&F Run Small? Size Chart & Size Finder 2026
Tesco F&F sits closer to the cross-brand average than any brand we measured. Here’s what the data shows — and the sizing gap worth knowing about.
Primark Kids Shoe Sizes in cm — UK to EU to cm Conversion Guide 2026
Primark kids shoe sizes don’t show centimetres — so we built the conversion chart. Find your child’s Primark shoe size from their foot length in cm or inches.
Wonder Nation Size Chart 2026 — Slim, Regular & Husky Sizing Guide
Complete Wonder Nation size chart for boys and girls, including Slim and Husky fits. The only budget kids’ brand with three distinct fits — available exclusively at Walmart.
Under Armour Kids Size Chart 2026 — Youth Sizing Guide
Under Armour kids size chart with free size finder. Full infant, toddler and youth sizing tables including extended (+) sizes, plus what YXS, YSM and YMD actually mean and how UA compares to Nike and Adidas.
Cat & Jack Size Chart 2026 — Target Kids Clothing Size Guide
Cat & Jack size chart with free size finder. Full toddler (12M–5T) and kids (4–18) measurement tables including Slim, Husky and Plus fits. Find out how Cat & Jack compares to Old Navy, Carter's and Gap.
OshKosh B'gosh Size Chart 2026 — Baby, Toddler & Kids Sizing Guide
Complete OshKosh B'gosh size chart for babies, toddlers and kids. Learn how OshKosh fits compared to Carter's, why overalls run slim, and use our free size finder to get the right size instantly.
The Children's Place Size Chart 2026 — Does TCP Run Small?
The Children's Place size chart with free size finder. Full baby, toddler (2T–5T) and kids (4–18) measurement tables. Find out how TCP compares to Carter's and Gap, and why you usually need to size up.
Adidas Kids Size Chart 2026 — Plus Adidas vs Nike Sizing Compared
Complete Adidas Kids size chart for clothing and shoes. What K means in Adidas sizes, Stan Smith fit guide, and full Adidas vs Nike comparison.
Primark Kids Size Chart 2026 — Including School Uniform Sizing
Complete Primark kids size chart including school uniform sizing. Enter your child's height for an instant size recommendation, plus how Primark compares to Next, H&M and other budget brands.
M&S Kids Size Chart & Size Finder 2026 — Short, Regular & Long Sizes Explained
Complete M&S Kids size chart for babies, toddlers and kids. Learn about M&S's Short, Regular and Long trouser lengths, premature baby sizing, and how M&S compares to Next, H&M and Zara.
Hanna Andersson Kids Size Chart & Free Size Finder
Hanna Andersson sizes by height in cm, not age. Full size chart from Newborn to size 160, US size equivalents, and a free size finder tool for instant results.
Next Kids Size Chart & Size Finder 2026 — Age & Height Sizing Explained
Complete Next Kids size chart for babies, toddlers and older kids. Learn why Next switches to height sizing at age 7, how schoolwear fits, and how Next compares to H&M, Zara and M&S.
Old Navy Kids Size Chart 2026 — Plus Uniform & Slim Fit Sizing
Complete Old Navy Kids size chart for babies, toddlers and kids. Learn why uniform sizing runs different, how Slim and Plus fits work, and how Old Navy compares to Gap and Carter's.
Nike Kids Size Chart 2026 — TD, PS & GS Sizes Explained
Complete Nike Kids size chart for clothing and shoes. Learn what TD, PS and GS mean, why Nike shoes run small, and how Nike Kids compares to Adidas, Gap and H&M.
Carter's Size Chart 2026 — Plus Why Sleepwear Runs Small
Complete Carter's size chart for babies, toddlers and kids. Learn why Carter's runs large, why pajamas fit differently, and how Carter's compares to Gap, H&M and Zara.
Gap Kids Size Chart & Size Finder 2026 — Slim, Regular & Husky Fit
Find your child's exact Gap Kids size instantly. Enter their height and get a recommendation plus how long it will fit — free size finder tool.
Zara Kids Size Chart & Size Finder 2026 — Does It Run Small?
Find your child's exact Zara size in seconds. Enter height and weight and get a personalised size recommendation plus longevity estimate. Free tool.
H&M Kids Size Chart & Size Finder 2026 — Get Your Child's Exact Size
Find your child's exact H&M size instantly — enter their height and get a size recommendation plus how many months of wear to expect. Free size finder tool.
How to Save $600+ Per Year on Kids Clothes
Stop wasting money on wrong sizes and emergency purchases. Learn the 5 biggest money drains and smart strategies that help parents save $600+ annually.
Kids Clothing Size Chart by Brand (2026 Guide)
Complete kids clothing size chart for 30+ brands. Compare Carter's, Gap, Target, Old Navy sizes. Find perfect fit, avoid returns.