Free Shipping on All Orders!
Baby Clothes Sizing: How to Find the Right Size the First Time

OMG! Everyone, including even the most he-man among us, can agree that baby clothes are adorable! In fact, for many new moms, clothes shopping is one of the most fun things they do as they prepare for their new little bundle.

It can also be a frustrating experience later as you find out that you only got to use your favorite outfit for two weeks before your baby outgrew it. Even worse are the clothes you buy that never actually fit.

Baby clothes sizing isn't simple. Manufacturers do what they can, but every baby is different. What fits one child won't necessarily fit another.

We've compiled a bit of information to help. Check out these tips and tricks to picking out the right size baby clothes on your first try.

Baby Clothes Sizing: By Age

If you've ever shopped for baby clothes, you're aware that they don't go by the typical S, M, L scale. They don't even have numbers like we're used to.

That's because babies grow quickly, especially during the first few months of life. To make it easier for parents (and baby shower shoppers who have no clue) many manufacturers go by age instead.

You can buy clothing for 0-3 months, 3-6 months, 6-9 months, 9-12 months, 18 months and so on. But this is only a general guide to go by.

Not all babies are born the same size. Some babies are large and may only fit the 0-3 months range for a couple weeks. Some may even skip it altogether!

Others (especially preemies) are born very small. They may stay in the 0-3 month range for a few weeks until they can grow into them.

Before your baby is born, you won't have much idea of what size will work. Your best bet is to buy a few necessities in the first couple of size ranges. Once your baby has made their arrival you can go on a shopping spree since you have a better idea!

Check Out the Chart

Another aspect that can make baby clothes sizing difficult is that not every manufacturer uses the same size chart. The same baby may fit 3-6 months size from one brand while 6-9 months from another brand is a little snug.

Some of this has to do with your baby's shape. Like adults, some babies are cute and thin while others are adorable and chubby. Some are longer and others are shorter.

Therefore, manufacturers each choose their own measurements. The best way to find out what size will fit your baby is to check out the brand's size chart. The chart shows the size and the corresponding height or weight (or both) of the baby that the size will fit.

Size charts are especially helpful when shopping online. For a new parent, this is the most convenient and relaxing way to shop!

Features to Look For at Each Stage

Some baby clothes are cute, but when you put them on your baby you notice a problem. They are not very comfortable or don't fit well, and your baby doesn't like them.

Tired parents already have to deal with a fussy baby. There's no reason to give your baby another reason to complain. Plus, you don't want your little munchkin to suffer for fashion yet. That comes later in life!

Here are a few features to look for at each stage of your baby's life.

0-6 Months

This stage tends to be messy. Babies spit up, drool, poop, and pee on their clothes a million times a day.

That means you're going to change their clothes and do laundry a lot! This can be further complicated, as some babies don't like having their clothes changed and can be fussy.

To make things easier for both of you, choose clothes that are easy to get on and off. Onesies are fabulous, as well as pants with an elastic band. Loose stretchy clothing with plenty of room in the neck and armhole make for quick, easy changes.

Also, your baby's skin is very sensitive, especially during the first few weeks of life. Opt for soft fabrics that won't cause irritation.

6-12 Months

Once your baby is a little bigger you can have more fun. Remember to still shop for comfort though. Stiff fabrics like denim, while adorable, won't make your baby happy.

Go for breathable cotton fabrics and stick with snaps and elastics. It's better to hold off on the buttons. Not only are they hard to fasten if your baby is a little squirmy, but they can also be a choking hazard.


Now's the time for tougher fabrics like denim or corduroy as your baby is on the move. Still, make sure that your toddler feels comfortable and can move freely.

Helpful Tips to Remember

As you go about shopping for baby clothes, here are a few tips to keep in mind.

Bigger is Better

If you're not sure about a size, go for the bigger one. If an outfit is too big, your baby will still be able to use it later. An outfit that is too small will never see the light of day.

Don't Go Overboard on Small Sizes

It can be hard not to buy every adorable baby outfit in sight when you go shopping. Keep in mind that babies grow quickly, especially at the beginning.

Once your child hits about the 12-month range, their growth will slow down and they'll get to use the same clothes for longer. It may be a good idea to buy your favorite outfits in those bigger sizes.

Pick a Few Favorites For Going Out

Babies stain their clothes on a regular basis. You can make your most favorite outfits shine by saving them for when you go out. Let them stain simple onesies in the house, but pull out all the stops for a visit to Grandma's house or the mall!

Go Have Fun!

Now that you have a better idea about baby clothes sizing and how to pick out the right clothes, go have fun! Buying baby clothes is one of the most fun parts about being a parent so enjoy the experience.

Your baby will show appreciation with that toothless grin that always manages to melt your heart. Check out our adorable collections today!

August 30, 2018 — Brandon Thompson