SizeChartKit

Toddler Size Chart: 2T, 3T, 4T, 5T Height & Weight Guide

Toddler clothing size chart for 2T through 5T with age, weight, height, chest, waist and 24M transition notes.

Toddler size chart: 2T to 5T

Toddler sizes often keep extra room for diapers and toddler proportions.

SizeApprox ageWeightHeightChestWaist
2T2 years28-32 lb / 13-15 kg33-35 in / 84-89 cm20-21 in / 51-53 cm20-21 in / 51-53 cm
3T3 years32-35 lb / 15-16 kg35-38 in / 89-97 cm21-22 in / 53-56 cm21-22 in / 53-56 cm
4T4 years35-39 lb / 16-18 kg38-41 in / 97-104 cm22-23 in / 56-58 cm22-23 in / 56-58 cm
5T5 years39-45 lb / 18-20 kg41-44 in / 104-112 cm23-24 in / 58-61 cm22.5-23.5 in / 57-60 cm

A size 4 can be slimmer than 4T. If potty training or diaper room matters, compare the brand chart before switching from T sizes.

Baby clothing size chart by age, weight and length

Use weight and length as the primary fit checks for baby clothing, sleepers and bodysuits.

SizeWeightLength / heightEU height labelFit note
PreemieUp to 5 lb / 2.3 kgUp to 17 in / 43 cmUp to 44 cmTiny newborn fit; brand ranges vary widely
Newborn5-8 lb / 2.3-3.6 kg17-21 in / 43-53 cm44-56 cmShort-term size for many full-term babies
0-3M8-12 lb / 3.6-5.4 kg21-24 in / 53-61 cm56-62 cmGood first size when newborn may be too small
3-6M12-17 lb / 5.4-7.7 kg24-27 in / 61-69 cm62-68 cmCheck sleeper length
6-9M17-21 lb / 7.7-9.5 kg27-29 in / 69-74 cm68-74 cmOften overlaps 6-12M labels
9-12M21-25 lb / 9.5-11.3 kg29-31 in / 74-79 cm74-80 cmMeasure length before buying footed items
12-18M25-28 lb / 11.3-12.7 kg31-33 in / 79-84 cm80-86 cmTransition toward toddler sizing
18-24M28-30 lb / 12.7-13.6 kg33-35 in / 84-89 cm86-92 cmMay overlap 2T but cut is often diaper-friendly

Baby brands vary. Month labels usually mean up to that age, so a 6M item may fit many babies before 6 months if they are tall or long-torsoed.

How to measure before choosing a size

Measure height with the child standing straight against a wall and shoes off.
Use weight as a secondary check because children with the same age can have very different builds.
For tops and jackets, check chest and sleeve; for bottoms, check waist, hips and inseam.
If a child is between sizes, size up for growth room unless the garment is safety-sensitive or must fit closely.

Related size charts

Baby Size Chart

Compare 18-24M and 24M before moving to 2T.

Kids Clothing Size Chart

Move from toddler into little kid sizing.

Toddler Shoe Size Chart

Match toddler foot length to shoe sizes.

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FAQ

What does the T mean in 3T?

T means toddler. 3T is designed around an average 3-year-old toddler body, but height and weight matter more.

Is 4T the same as size 4?

Not always. 4T often has toddler proportions and diaper room, while size 4 may be slimmer.

Should I size up toddler clothes?

Size up if height or weight is near the top of the range, but avoid oversized sleepwear when snug fit is required.