Between Kiabi and H&M, decide by garment type. For kids basics, height and age help, but waist, length and fabric prevent pieces that are too short or too roomy.
| Garment | Kiabi | H&M | SIZES tip |
|---|---|---|---|
| T-shirts | Practical for basics and multipacks | Can vary by fit and collection | Compare chest, shoulder and length |
| Trousers | Check waist and rise, especially in denim | Adjustable waist helps, but not always enough | Measure waist and leg before sizing up |
| Sweatshirts | Can allow room if sleeve and neck still work | May feel longer or wider depending on style | Test with arms raised |
| Dresses | Look at chest, waist and drape | Cut can change a lot between basic and smart pieces | Check lining or marked waist |
| Coats | Leave room for layers without losing shoulder fit | Check sleeve and real volume | The coat must work today, not only later |
Why buying by age is not enough
Kiabi and H&M are both common choices when families need basics: T-shirts, leggings, trousers, pyjamas, sweatshirts or school-friendly pieces. But two garments with the same age on the label do not necessarily share the same length, width or movement room.
Age compresses too much information. Two six-year-olds can have different height, waist and proportions. Each brand also makes its own pattern decisions, target fit and collection choices. That is why a size that works in one T-shirt may not work in trousers.
What to check first
Start with the critical fit area. For T-shirts: shoulders, chest and length. For trousers: waist, rise and leg. For sweatshirts: sleeve, neck and length. For dresses: chest, waist and drape. For coats: shoulder, sleeve and enough room for a layer underneath.
When buying online, open the exact product chart. Some brands show body measurements and others show garment measurements. They are not the same thing. In store, use a garment that already fits as a quick reference; placing one T-shirt over another often reveals differences the label hides.
SIZES tip: save simple notes like "H&M long T-shirt" or "Kiabi comfortable waist". That memory is more useful than remembering only the size.
How much room to leave
Growing room is useful when it allows growth without discomfort. Excess shows when sleeves cover hands, trousers fall, the rise feels wrong or a coat restricts movement because it sits badly. One size up does not always last longer if the child does not want to wear it now.
For stretchy basics you can allow a little more ease. For jeans, smart trousers, waist-defined dresses or coats, be more precise. In each case, let the least forgiving part of the garment decide.
How to use SIZES
Save height, waist, chest and brand notes in each child profile. When a Kiabi or H&M garment works well, note size, garment type and feel: short, roomy, fitted, good length, generous waist. That turns the next purchase into a real comparison.
You can also read how to measure kids' clothes at home, our Primark vs H&M Kids guide and the article on what to do when you are between two sizes.
Final recommendation
If you are choosing between Kiabi and H&M, do not decide by brand in absolute terms. Decide by garment, fabric and use. A play T-shirt allows more room than school trousers; a sweatshirt can look relaxed, but a coat needs shoulder and sleeve in the right place.
FAQ
Do Kiabi and H&M fit the same for kids?
Do not assume so. Use age as a starting point and always check measurements, garment type and fit.
What should I check first in kids basics?
Length, shoulders and waist. In basics or multipacks, a small difference can change daily use.
Is it better to choose by height or age?
Height is usually more useful than age, but the exact garment and real measurements still decide.