Size Guide

Size Charts for Babies & Children

Children grow quickly – and each brand sews a little differently. To ensure you choose the right size when shopping, we have summarized what matters most: from the correct measuring method to the specifics of individual brands.

How to find the right size

Practical tips for stress-free shopping – no matter the brand.

1

Use size charts

Almost every manufacturer offers a size chart online. Measure your child (height, chest circumference, waist circumference, inseam) and compare the values with the chart. Especially for French brands, sizes are often given in months, so a close look is particularly worthwhile here.

2

Listen to experience

Find out about specific brands in parent forums or from friends. Often, other parents have already reported which brands run larger or smaller. Rules of thumb like "H&M runs large, C&A rather small" help with the assessment.

3

Order one size up if unsure

When in doubt, it's worth ordering one size larger. If it's too big, your child will still grow into it, and you'll get an impression of the product and can reorder the smaller size if necessary.

4

Note double sizes

Brands with dual sizes (e.g., 98/104) are based on the larger number. If your child is at the beginning of a dual size interval, the garment will initially fit loosely – this is normal as children grow into it.

5

Know the child's fit type

Observe which cuts fit your child well. Slim torso, but long legs? Then you know which brands might be more problematic. Sturdy children often feel more comfortable in wider-cut brands, while very slender children get along well with narrower cuts.

6

Watch out for growth spurts in babies

Babies grow in spurts. What fits today may be too small in a month. Feel free to buy slightly larger sizes – except for clothing for special occasions, which should fit exactly.

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General guidelines – exact measurements may vary by brand and cut.

How kids' brands run

Over 90 brands at a glance – small, true to size, or large.

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Easily determine baby and children's sizes: The Neworn size guide for baby & children's clothing

Children grow quickly – often faster than you can keep buying new clothes. Since brands and manufacturers interpret cuts differently, our size guide helps you choose the right baby and children's clothing straight away. This way, you avoid bad purchases and returns and are guaranteed to find the right garment for every age.

Which size fits which age?

In German-speaking countries, clothing sizes for babies and children are primarily based on body height in centimeters. For newborns, the size selection usually starts at size 50-56 cm. For babies in their first year of life, size 62-68 cm and size 74-80 cm are the main companions during the first growth spurts. Toddlers and kindergarten children often wear size 92-98 cm or size 104-110 cm, before sizes from 128+ cm are needed for school-age children.

Fit tips by category

Depending on the garment, it is worth taking a closer look at the cut and the elasticity of the material:

  • Newborn essentials & basics: For bodysuits and rompers, it is advisable to choose the larger double size in case of doubt, so that there is enough room for a cloth diaper. If you are looking for a coordinated wardrobe right from birth, you can save a lot of time putting it together with our practical baby & children's bundles.
  • Everyday clothing: For trousers, an adjustable waistband ensures a perfect fit, even if the leg length is still generous. If you are wavering between two sizes for T-shirts or sweaters, it is best to choose the larger version to grow into. For jackets, it is also recommended to go one size up so that thick sweaters can fit underneath in a layered look.
  • Accessories & seasonal items: For dresses and skirts, it is best to orient yourself by the length of the upper body. For swimwear, the fit should be snug so that nothing slips. Soft, stretchy hats and socks should be flexibly elastic without leaving pressure marks.

How do popular children's brands fit?

Brands like NAME IT usually offer a reliable, true-to-size fit for everyday life. Those looking for sustainable organic quality appreciate Scandinavian brands such as Müsli by Green Cotton or Petit Piao, which are often cut a bit more generously. Natural textiles from PURE PURE by Bauer, Popolini, or Organic by Feldman impress with their stretchy fits, while brands like The New offer modern cuts for older kids.

Seamless size changes with the Neworn App

Once your child has outgrown a size, you don't have to keep the well-preserved clothing in the closet. Through the Neworn App – our free marketplace for iOS and Android – you can easily resell pre-loved baby and children's clothing to other parents while discovering suitable second-hand favorites in the next size up.