Kids' Clothes Sizes: Know What Fits Before You Shop
You're in the store, holding a pair of jeans, and you have no idea if your kid is a 6 or a 7 right now. You guess. You get home, and they're too short. Or they fit fine, and then you find two pairs in the same size in a bin in the closet.
Kids change sizes faster than anyone can keep track of in their head. Add hand-me-downs, birthday gifts, and a grandparent who likes to shop, and it's easy to end up with a drawer full of things that don't fit and nothing for the cold snap next week.
The fix is small: a short size list for each kid that everyone can check before they buy. Here's how to set one up and keep it current, with paper, a notes app, or an app built for lists.
Start one size list per kid
A size list is a one-page note that says what fits each kid today. That's it. It doesn't need to be a full wardrobe inventory.
For each kid, write down:
- Tops: the size on the tag of a shirt that fits well right now
- Bottoms: pants and shorts size (and whether they need slim, regular, or adjustable waist)
- Shoes: current shoe size
- Outerwear: coat size, if it's different from tops
- Pajamas and underwear: these often run on their own sizes
- Notes: anything useful, like "long legs, size up in pants" or "hates scratchy tags"
Use the size on a tag that fits, not the age. Two kids the same age can be in very different sizes, and sizes vary between brands. If a brand runs small, write that down too: "Brand A: size up."
Put the date at the top of the list. When you see a date from last spring, you know it's time to check again.
Check sizes at every season change
The easiest time to update the list is when the weather turns and you're swapping summer clothes for winter ones anyway.
A quick size check takes about 15 minutes per kid:
- Have them try on a few things from each category: one shirt, one pair of pants, shoes, and their coat.
- Look for the usual signs: sleeves above the wrist, pants above the ankle, shirts that ride up, toes pressing the front of the shoe.
- Update the list with the new sizes and today's date.
For shoes, measuring is better than guessing. Some shoe stores will measure feet for free, or you can trace a foot on paper at home and compare it to the brand's size chart. Check fit when your kid is standing, since feet spread out under weight.
If you do nothing else from this post, do this. A size list that's six months old is almost as bad as no list.
Track hand-me-downs and outgrown bins
Most families have a bin (or three) of clothes waiting for someone to grow into them. The problem is nobody remembers what's in there, so you buy a winter coat in size 8 while a perfectly good one sits in the basement.
Keep it simple:
- Label every bin by size and season, like "Size 7, winter" or "Size 5, summer." Put the label on the short end so you can read it on a shelf.
- Write a short list of what's inside and keep it with the size list. "Size 7 winter: 2 jeans, 1 coat, 3 long-sleeve shirts, snow boots."
- Check the next-size bin before you shop. When a kid moves up a size, open that bin first.
For clothes your youngest has outgrown, decide on a plan: pass along to a friend or cousin, donate, or keep for a younger sibling. Write the plan on the bin so it doesn't sit for years. If you share clothes with another family, a simple note of what went where helps everyone.
Write a need list before you shop
Once the sizes are current and you know what's in the bins, the shopping list writes itself. Go category by category and write down only the gaps.
A need list might look like this:
- Maya (size 7 tops, 7 slim bottoms, shoe 1): 2 long-sleeve shirts, rain boots
- Leo (size 4T, shoe 10): winter coat, 5 pairs of socks
Always include the size next to the item, so anyone can buy it without texting you from the store. If you shop seasonal sales, add a line for next season's size too, so you can grab a good deal on a coat that will fit next winter.
This is also a good place to note what kids actually wear. If the soft joggers get worn every day and the stiff jeans never leave the drawer, buy more of what works.
Share the list with anyone who buys clothes
Grandparents, aunts, uncles, and a partner who does the Saturday errands all buy clothes for your kids. They want to get it right. They just don't know the sizes.
A few ways to share:
- One shared note or list that everyone in your home can open. When you update a size, they see it.
- A quick message before birthdays and holidays with each kid's current sizes and a short need list. It pairs well with a gift list you keep all year.
- A "please don't buy" line for things you have plenty of, like pajamas or graphic tees.
When everyone shops from the same list, you get fewer duplicates, fewer returns, and fewer clothes that sit unworn with the tags still on.
The same idea helps on trips, too. If you keep a family packing list, you can check it against the size list so the swimsuit you pack is one that still fits.
Doing it with Domesio
If you'd rather keep this on your phone, Domesio's custom lists work well for kids' clothes. Make a list for each kid (or one list called Kids' Sizes) and add your own fields, like Size, Season, or Brand. Use notes for fit tips, quantities for things like socks, and dates for when you last checked.
You can also make a custom list for each bin ("Size 7, winter") and check items off as they come out. When it's time to buy, add what's missing to your shopping list with the size in the item's notes.
If you share a household in Domesio, other household members can see your custom lists, and the person who made a list can choose who has access. So your partner can check sizes from the store, and you don't get the "what size is she now?" text.
Either way, the next time you're holding those jeans in the store, you'll know.