If you’re wanting to go shopping for newborn clothes, you may be wondering what size to buy, especially if baby hasn’t been born yet, you might be a bit confused! When it comes to dressing a newborn, size matters. You’ve probably already received or purchased cute outfits as gifts in a range of sizes, from preemie to 3-6 months. But how do you know what will actually fit your baby?
Newborn clothes sizes can be tricky to figure out. Not all babies are built the same, and sizing isn’t an exact science. The truth is, you won’t really know your baby’s size until after they arrive. But don’t worry, we’ve decoded some of the newborn clothing size’s, so you’ll feel prepared to dress your little bundle of joy.
In this article, we’ll walk you through how to choose your newborn clothes sizes for your baby based on their age, weight, and measurements. With these tips, you’ll be dressing your baby in comfort and style in no time.
Average Newborn Clothing Size Dimensions
As a new or expecting mother, figuring out what size clothes to buy for your newborn can be confusing. The most important thing to be considered is your baby’s comfort. Don’t worry too much about an exact size match. Having a range of sizes, from preemie up to 3-6 months, will ensure you have what you need for your newborn’s growth and changing shape over the first few months. Focus on stretchy, soft fabrics and adjustable features.
Here are some tips to determine the right size based on average newborn dimensions:
- Chest: The average newborn chest size is around 33 to 35.5 cm (13 to 14 in).
- Waist: Expect a newborn waist measurement of about 28 to 30.5 cm (11 to 12 in).
- Hips: Newborn hips typically measure around 33 cm (13 in).
The average newborn weighs between 2.5 to 4.5 kg (5 to 10 pounds). For the first few months, it’s best to have newborn clothes sizes that cover that range, from preemie up to 3-6 months. You’ll want bodysuits, sleepers, and tops in multiple sizes since babies grow quickly!
The typical newborn is between 48 to 56 cm (19 to 22 in), in length. Onesies, sleepers and other outfits that are adjustable or a bit longer, around 56 to 61 cm (22 to 24 in), are good options. Look for features like expandable or adjustable waists, cuffs and foot openings that can accommodate growth.
An approximate newborn clothes size guide:
- 00000 – Newborns born premature or small babies under 3 to 3.5kgs (6.5 to 7.5 pounds)
- 0000 – Newborns under 4kg (9 pounds), birth to 3 months
- 000 – Babies under 6 kg (13 pounds), 3 months to 6 months
- 00 – Babies between 6 and 8 kgs (13 to 17.5 pounds), 6 months to 9 months
- 0 – Babies above 8 kgs (17.5 pounds), 9 months to 12 months
- 1 – Babies above 10kgs (22 pounds), 12 months
Please note that the sizes above are a gerenal guide only, as there may be some babies who have longer bodies or just don’t seem to fit well into some brands. While some babies will fit straight into 000’s, some will need 0000’s, or even smaller if born early. Something else to remember is that all the clothing sizes differ based on manufacturer. Either 0000 or 000 are the most common sizes to start with.
Tips To Choosing the Right Newborn Clothes Size:
Choosing the right size clothes for your newborn can be tricky. Here are some tips to help you feel confident in your selections:
- Focus on Essentials – Stock up on must-haves like sleepers, onesies, socks, and hats. Buy a few cute outfits if you like, but keep in mind your baby will outgrow them very fast. Prioritize comfort and practicality over fashion.
- Size Up – It’s always better to buy newborn clothes size bigger. Newborns grow so quickly that what fits at first may not a week later! Aim for 3-6 months size to maximize wear time.
- Check the Fit – Look for clothes with some stretch or elasticity, like cotton or bamboo knits. Avoid anything too snug or restricting. Loose, comfortable newborn clothing is best for new babies. When trying on outfits, make sure there’s enough room for a diaper and that sleeves and pant legs have some extra length or give to allow for growth.
- Don’t Forget Nappies or Diapers – Buying nappies or diapers one size up from the clothes to ensure a good fit. As your baby grows, you may need to size up nappies before clothes. It’s a good idea to have multiple sizes of nappies on hand for the early weeks.
- You Can Never Have Too Many – While you don’t need a lot of newborn clothing, onesies and other basics are used often, so buy plenty. Around 5-10 of each essential item is a good start. More is always better since frequent spit-ups and nappy leaks are common!
With these tips, you’ll be fully prepared for your baby’s first weeks. Focus on comfort, allow for growth, buy extras, and keep it practical. Your little one will thank you!
Fitting and Safety Considerations for Newborn Clothes Size
When choosing newborn clothes sizes, safety and fit are most important. Their delicate skin and small size mean certain considerations are necessary to keep them comfortable and protected.
- Soft, Loose Fabrics Only – A newborn’s skin is extremely sensitive, so only buy clothes made of soft, breathable fabrics like cotton or bamboo. Avoid scratchy lace, zippers, buttons or snaps that could irritate their skin. Loose-fitting clothes are most comfortable for newborns. Tight elastic bands or snug fits could restrict blood flow or make it difficult for them to move freely.
- Easy On and Off – Look for outfits that are simple to put on and take off, with openings that easily slip over the head. Newborns tend to squirm, cry and protest being dressed, so the easier and quicker you can clothe them, the less stressful it will be for both of you. Outfits that Velcro up the front are ideal, however that can irritate the skin. Avoid anything that pulls over the head.
- No Loose Strings or Parts – Newborn clothes should not have any loose strings, ties, ribbons or small parts like snaps that could present a choking or entanglement hazard. Make sure any buttons, bows or other embellishments are securely attached and unable to be pulled off. It’s best to avoid any outfits with these hazards altogether.
- Proper Length – Footed outfits like sleepers are perfect for newborns, keeping them warm while allowing for easy diaper changes. For other outfits, make sure legs and sleeves have ample length so they can’t ride up and expose skin. Outfits should extend to at least mid-thigh for dresses and about an inch past the wrist for sleeves.
Following these guidelines will ensure your newborn’s comfort and safety during those first delicate months. Focus on their basic needs and avoid unnecessary frills—you’ll have many years ahead to enjoy all the cute outfits!
Newborn Clothes Size BellyBelly Members Started With
Check out the BellyBelly poll where I asked members to vote and comment on what size their baby started wearing first.
For more information on buying the right baby clothes, we recommend you review the following:
Choice Baby Clothing