What Size Is 1T?

Plenty of people out there are unable to figure out what size is 1T! Parenting is an overwhelming experience but figuring out baby clothes sizing is a tough task. The different clothing sizes can easily make you confused if just had your first child. In today’s post, I will tell you what is size 1T. Knowing the difference between different sizes of clothing is essential before buying clothes for your little ones. Usually, baby clothes are purchased according to the age of your baby as they develop and grow quickly. Let us now learn what size is 1T to dress up your baby.

What Size Is 1T?

The size 1T is the clothing size for a baby who is roughly 1 year old. This size is perfect for a baby who doesn’t fit in 12-month clothing. Here, the T in children’s clothing refers to toddlers; who are up on their feet and moving around. However, this clothing size varies based on weight, height, and walking ability. 

There is no fixed size a baby should were as it all depends on their weight, height, and shape. A brand sizing chart can be a lifesaver if you are still struggling to find the right size for your toddler. However, you will different labeling in other countries like Europe and the United States. You can check out the following sizes for your baby/toddler clothing.

  • Preemie
  • Newborn
  • 0-3 months
  • 3-6 months
  • 6-9 months
  • 9-12 months
  • 12-18 months
  • 18-24 months
  • 24 months
  • 2T
  • 3T
  • 4T
  • 5T

Just remember that sizing charts vary across brands and countries. Now, you must be wondering what size is 1T in months. Many people think the size 1T and 12 months are the same sizes but there is one slight difference. 1T is ideal for babies who are between the 12-month and 18-month sizing.  

You can keep reading further to learn more about what size is 1T for babies.

You must at least know your child’s height and weight before purchasing the clothes. The size 1T is the smallest toddler size and fits a child up to 30 lbs and 35” tall. Therefore, make sure you check your baby’s height/weight and then check the sizing charts of the clothing brand.

Do you know what size is 1T-2T? The clothing items for toddlers come in various forms like top wear, bottom wear, dresses, and more. You can consider this size chart for toddlers designed by Kohls.

Size Height Weight
1T-2T 35 Up to 30 lbs
2T-3T 35-40 Up to 40 lbs
3T-4T 40 Up to 40 lbs
4-6 45 Up to 55 lbs

As the size 1T is very uncommon and won’t be available in most U.S. retailers. You can check on Amazon and Etsy listings if you are struggling to find 1T clothes.

Size 1T vs 12 Months

I hope now you know what size is 1T in baby clothes. The size 1T and 12 months are technically different sizes having only one slight difference. The size 1T is perfect for babies who are walking. This clothing size is designed for babies who are no longer wearing diapers and are more mobile. There is enough room for a diaper as most one-year-olds are not potty trained. You won’t get diaper flaps, snaps, or zippers in 1T baby clothes.

On the other hand, the 12-month size is better for crawling babies. These clothes have more space in the hip area and often have snaps or zips. This makes it easier for mothers to access the diaper to change it. You will find more cute baby designs in 12 months instead of 1T clothing.

Therefore, any numbers with months are designed for babies/children who are still wearing diapers and crawling instead of walking. Make sure you check the brand sizing chart before you buy baby clothes.

1T vs 18 Months Clothing

The difference between 1T vs 18-month size clothes is more visible than the 1T vs 12-month sizes. Generally, the 18-month size fits bigger than 1T clothes as they are designed for one-and-a-half-year-olds. On the other hand, 1T clothes can fit babies around their 1st birthday.

Tips To Consider While Purchasing Toddlers Clothes

Once you understand what size is 1T, you can go ahead and purchase clothes for your toddlers. You can consider the following tips while purchasing clothes for your babies.

  • It is better to prioritize quality over quantity as you won’t need too many baby clothes because your kid will grow rapidly.
  • Make sure you keep your baby’s comfort in mind while picking clothes for your baby.
  • Avoid buying garments that will be difficult to put on your child.
  • You can purchase anything made of cotton to help your child feel more comfortable.
  • Always choose durable clothes for kids as they are more likely to damage their clothing.

A toddler’s skin is very fragile and sensitive so parents should choose soft fabrics that are airy and easy to move in.

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What Size Is 1T On Amazon?

A: thanks for your message ,1T means it is one tie(90CM long) ,2T means it is 2 ties ,first tie is 60CM ,second tie is 90CM.

Is 24 Months A 1T?

2T: What’s The Difference? Clothes that are labeled 24 months are made for those who are anywhere from 18 to 24 months. By comparison, 2T clothing is made for toddlers, generally anywhere from 2 to almost 3 years old.

What 1T Means?

1T may refer to: One-T, a French electronic musical project. 1T-SRAM, a type of pseudostatic random-access memory. 1T DRAM, a type of Dynamic random-access memory.

What Size Is A 1 Year Old?

At one year, boys are around 29 3/4 inches (75.7 cm) and girls average 29 inches (74 cm). The factors that determine height are: Genetics: The height of a child’s mother, father, and other family members have the most significant impact on how tall the child will be.


In the above post, I’ve discussed what is 1T size in detail. The size 1T is the clothing size for babies who are roughly one year old and for kids who are walking. It would also fit an older toddler who is in the smaller size. The most important factor you must consider while buying baby clothes is your child’s weight and height apart from their age. As baby clothes made in Europe are sized differently, make sure you check the brand size chart. Once you know what size is 1T, you can buy clothes for your babies according to their size.

Is size 1 the same as 12-18 months