We know the difficulty you will be facing in understanding the clothes size from 0-3 months for your baby. Like adults and their clothing, babies also have different shapes and sizes. Depending on their height and weight, they fit into varying sizes.

Baby clothes sizes are labeled according to age, such as newborn, 0-3 months, 3-6 months, 6-9 months, 9-12 months, 12-18 months, and 18-24 months.

0-3 months baby clothes are designed to fit babies weighing 8 to 12 pounds. The clothes for newborns are smaller to cover babies of 5 to 8 pounds.

So, if you are confused about whether to buy a newborn size or 0-3 months clothes for your baby considering weight, this guide has detailed information to help you. Keep reading to learn more about baby clothes size charts by different brands.

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Difference Between Newborn Vs. 0-3 Months Clothes Weight

Difference Between Newborn Vs. 0-3 Months Clothes Weight

Some of you might think newborn and 0-3 months sizes are the same, but this isn’t true. Newborn-size clothing is designed for babies who weigh 5 to 8 pounds and have a height of up to 21.5”. In contrast, the 0-3 months clothes are made for babies weighing 8 to 12 pounds with 21.5 to 24” height.

So clothes ranging in size from 0-3 months are designed to fit babies up to 3 months old. Here we have elaborated on the difference between newborns and 0-3 months clothes weight.

What Are Newborn Size Baby Clothes Weight?

Newborn-sized clothes are made for term babies at their birth with weights up to 5 to 8 lbs and 18 to 21 inches in height. There is a high possibility of varying sizes and availability at different brands.

Not all stores have a special newborn size, such as Old Navy, Gap, and Children’s Place; rather offer size labeling up to 7 lbs. These sizes are slightly smaller than newborns at Carter and Target. Instead of 7 lbs, the preferred size ranges between 0 to 3 months.

Carter has preemie size before newborn to fit babies up to 6 lbs and 18 inches. Some other brands, such as Little Sleepies, offer micro-preemie sizes for smaller babies.

What Is 0-3 Month Size Baby Clothes Weight?

If your baby is up to 3 months, 0-3 months clothes size is specifically made for him/her. These babies usually weigh 8 to 12 lbs and are 21 to 24 inches tall. Variations are possible depending on different size charts.

When babies are born, the boy weighs up to 7.8 lbs, and the girl weighs 7.5 lbs. In the early weeks, they will wear 0-3 months clothes size; after those weeks, they will gain weight to skip these particular sized clothing.

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Are 0-3 Months The Same As 3 Months?

Are 0-3 Months The Same As 3 Months

As a general rule of thumb, 0-3 month and 3-month size is same clothes size. Clothes labeled as 0-3 months can fit babies up to 3 months, while 3 months size is also made for babies of the same age.

Different brands use these varying labelings, but most have a similar meaning. Carter’s sizes use 3-month labels, and Old Navy and Gap use 0-3 month size labels.

Height & Weight Chart For 0-3 Months Clothes

Below, we have shared sizing details with the baby’s height and weight offered by different clothing brands. Sizing notes are also added for better understanding.

Brand Sizing For 0-3 Months

Weight (Pounds)

Height (Inches)

Sizing Notes

Amazon Essentials 

8 to 12.5

20 to 23.5

True to size

Cat & Jack

9 to 12 

20.5 to 23.5

Runs a little larger

Carter’s

9 to 12.5

21.5 to 24

Ideally right size

Gerber 

6 to 12 

21 to 24

Comparably too small

Gap

7 to 12

18 to 23

Right-sized

OskKosh 

6 to 12

21.5 to 24

Slightly small

Old Navy 

7 to 12 

19 to 23

True to size

The Children’s Place

7 to 14

20.5 to 24

Slightly small

Wonder Nation

6.5 to 12

20.5 to 23

Large size

Size Charts By Brands From Newborn to 0-3 Months Size

Size Charts By Brands From Newborn to 0-3 Months Size

As baby clothes are labeled according to age, the sizes are diversified from Preemie to Newborn, 0-3 months, and so on. However, not all sizes are the same for each brand, as everyone has a different chart designed to fit a baby of certain age, weight, and height.

We have further explained the most popular baby clothes brands and their sizing charts here.

Children’s Place Newborn Vs. 0-3 Months Clothes

Children's Place is a great affordable baby clothes retailer that offers a size of 7 pounds for newborns and comparable height.

  • For 0-3 months size, the weight can range between 7 to 14 lbs while the length usually lies between 20.5 to 24 inches.
  • This size is considerably bigger than other brands and also slightly wider.

If your baby is tall but skinny, Children's Place is the best brand to find your baby's clothing.

Carter’s Newborn Vs. 0-3 Months Clothes

When it comes to the name of a baby clothing brand, Carter is one of the leading brands in the United States. According to a 2019 report, Carter has up to 25% of the baby clothes market.

  • Their baby clothes size starts from newborn with 6 to 9 lbs weight and 18 to 21.5 inches.
  • While there is no 0-3 months size, a 3-month-old baby weighs between 9 to 12.5 lbs and 21.5 to 24 inches in length.

Old Navy And Gap Newborn Vs. 0-3 Months Clothes

Old Navy and Gap are well-known brands for baby clothes but do not label sizes as 0-3 months. Rather they label it 3 months for 7 lbs with 19 to 23 inches length.

Most items are footed pajamas and onesies. There is no specific newborn size, but the range starts from 0-3 months covering sizes from newborn to 3 months old.

However, the pajamas of 0-3 months are comparably bigger than other retailers and slightly looser than Carter's.

Target’s Newborn Vs. 0-3 Months Clothes

Target's Cat and Jack's 0-3 months is labeled as 3 months for 9 to 12 lbs baby weight and 20.5 to 23.5 inches height.

The newborn clothes size is a bit smaller and has a smaller range for weight and length compared to other brands.

What Size Baby Clothes Should You Pack For Birth?

If you have a newborn baby and want to get some right-sized clothes, you will find them in varying sizes from preemie to newborn and 0-3 months size labeling.

We recommend packing up newborn-size clothes for the hospital, such as bamboo pajamas, that are stretchy enough to fit well. These pajamas fit perfectly to babies better than regular baby clothes.

Tips For Buying Clothes For 0-3 Months

You must consider many things when buying clothes for a newborn baby. The right size doesn’t only matter for perfect fitting, but there should be enough space for comfort and breathability. Here are a few tips for you:

  • Buy clothes considering the current season. Buying winter clothes for summer delivery won't be a good idea. So, always keep the season or weather in mind.
  • It can be hard to pull clothes over a baby's head, so buying onesies is better. You can also get baby-friendly zippers and baby vests. Ensure the clothes have enough room for easy diaper changing in an emergency.
  • Choose clothes keeping style and comfort in mind. The clothes should be breathable. As they can shrink over time so, buy one size ahead.
  • It is better to know about the size differences of brands to ensure a great purchase experience.
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FAQs

What are first-size baby clothes?

First-size baby clothes or newborn sizes are the same. It can range in weight for babies from 6 to 9 lbs and 18 to 21.5 inches in height. This can vary from brand to brand.

How fast do babies gain weight?

Babies start to gain weight faster, but later on, they slow down. In the early months, babies gain about 1 ounce (28 grams) daily. The weight gain slows down around four months to about 20 grams per day. When they reach 6 months, this further reduces to 10 grams daily.

What size is best for a newborn?

Size 000 is designed to fit babies from 0 to 3 months old. The size 00 is for babies 3-6 months old. 0-3 months can wear newborn-size clothes. The size needs can vary depending on the baby's growth (height and weight).

How much do baby clothes weigh?

Baby clothes are usually short sleeve cotton onesies or bodysuits that weigh almost 40 grams for 0-3 months. With a diaper included, the weight can exceed 15 to 20 grams.

Wrapping Up

Baby clothes sizes are based on factors such as age, weight, and height, so you must consider all to get the right size.  However, it is good to research the charts of different brands for a better understanding. You must also know the labels specifying a certain size, such as 0-3 months is for babies up to 3 months from newborns.

The weight for newborns and 0-3 months lies between 5 to 12 pounds, but again this totally depends on the brand. We hope the information we provided will help you get perfectly fitting clothes for your little angel.

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