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Toddler size guide: 24 months vs 2T and beyond

What size clothes does a 2 year old wear? Here is the plain-English answer, how 24 months differs from 2T, and how to measure in two minutes.

Toddler size basics

Every brand sizes a little differently, so the best tool is a tape measure and the brand's own chart. Here is how the sizes generally line up.

SizeUsually fitsCut
18 monthsAbout 1 to 1.5 yearsBaby cut, room for diapers
24 monthsAbout 1.5 to 2 yearsWider and shorter, room for diapers
2TAbout 2 yearsSlimmer and longer, for walkers
3TAbout 3 yearsToddler cut
4TAbout 4 yearsToddler cut
5TAbout 5 yearsToddler cut, overlaps kids size 5

Ages are rough guides only. For exact height and weight ranges, check each brand's size chart, for example Carter's 24 months vs 2T guide.

How to measure in two minutes

Stand your toddler against a wall without shoes and mark the top of their head for height. Weigh yourself holding them, then subtract your weight. Compare both numbers to the brand chart and pick the size where they land in the middle, not the top.

Quick answers

What size clothes does a 2 year old wear?

Most 2 year olds wear 24 months or 2T, and many move into 3T during the year. Go by height and weight on the brand's size chart instead of age, because brands differ.

What is the difference between 24 months and 2T?

24 months is cut roomier for diapers and is a little shorter, often with snaps. 2T is cut slimmer and longer for a toddler who is walking and potty training. Carter's and Gerber both describe the difference this way on their own size guides.

What does the T mean in toddler sizes?

T stands for toddler. Sizes 2T to 5T are cut for walking children, while month sizes (like 18 or 24 months) are cut for babies in diapers.

Should I size up toddler clothes?

Sizing up one size works for coats, jackets and gifts. Do not size up snug-fit cotton pajamas, which are designed to fit close to the body for safety.

4 hand-picked styles

True-to-size staples to start with

Simple Joys by Carter's is a popular brand for comparing sizes because it uses Carter's sizing.

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About the pictures: they are original illustrations of each style, not photos of the exact item. Tap through for real photos and reviews.

For big siblings, ages 4 to 8

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Seasonal coloring books written by the founder of Toddler Apparel under the pen name Marist Winters. Great for quiet time, road trips and holiday stockings.

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Quick guides

More guides

Short, plain-English guides with sizing tips and safety notes.

Toddler pajamasSnug-fit, organic and footed picksFall and winter outfitsLayers, coats and bootsChristmas gift guideGifts that are not more toysBasics and shoesEveryday staples and first sneakers