Height and Weight Size Chart: Kids Clothing by Measurements

Kids height and weight size chart for baby, toddler and youth clothing with chest, waist and stage guidance.

Age to clothing size chart

Use age as a quick entry point, then verify by height and weight.

Age	Common size	Weight	Height	Best check
0-3 months	0-3M	8-12 lb / 3.6-5.4 kg	21-24 in / 53-61 cm	Use length for sleepers
6 months	3-6M or 6M	12-17 lb / 5.4-7.7 kg	24-27 in / 61-69 cm	Size up if near top of range
12 months	9-12M or 12M	21-25 lb / 9.5-11.3 kg	29-31 in / 74-79 cm	Check diaper room
2 years	2T	28-32 lb / 13-15 kg	33-35 in / 84-89 cm	Toddler cut
3 years	3T	32-35 lb / 15-16 kg	35-38 in / 89-97 cm	Toddler cut
4-5 years	4T, 4 or 5	35-49 lb / 16-22 kg	38-45 in / 97-114 cm	2T-5T to kid sizes transition
6-7 years	6-7 / YS	49-58 lb / 22-26 kg	45-50 in / 114-127 cm	Little kid range
8-10 years	8-10 / YM	58-80 lb / 26-36 kg	50-56 in / 127-142 cm	Youth medium range
11-13 years	12-14 / YL	80-115 lb / 36-52 kg	56-64 in / 142-163 cm	Youth to adult crossover

Age is the least reliable measurement for children. Height is usually the fastest way to improve accuracy.

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

Size	Approx age	Weight	Height	Chest	Waist
2T	2 years	28-32 lb / 13-15 kg	33-35 in / 84-89 cm	20-21 in / 51-53 cm	20-21 in / 51-53 cm
3T	3 years	32-35 lb / 15-16 kg	35-38 in / 89-97 cm	21-22 in / 53-56 cm	21-22 in / 53-56 cm
4T	4 years	35-39 lb / 16-18 kg	38-41 in / 97-104 cm	22-23 in / 56-58 cm	22-23 in / 56-58 cm
5T	5 years	39-45 lb / 18-20 kg	41-44 in / 104-112 cm	23-24 in / 58-61 cm	22.5-23.5 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.

Youth alpha labels bridge little kid sizes and adult XS/S sizing.

Youth label	Approx age	Weight	Height	Chest	Waist
YXS / 4-5	4-5 years	39-49 lb / 18-22 kg	40-45 in / 102-114 cm	22-24 in / 56-61 cm	21-22 in / 53-56 cm
YS / 6-7	6-7 years	49-58 lb / 22-26 kg	45-50 in / 114-127 cm	24-26 in / 61-66 cm	22-23 in / 56-58 cm
YM / 8-10	8-10 years	58-80 lb / 26-36 kg	50-56 in / 127-142 cm	26-29 in / 66-74 cm	23-25 in / 58-64 cm
YL / 12-14	11-13 years	80-115 lb / 36-52 kg	56-64 in / 142-163 cm	29-33 in / 74-84 cm	25-27 in / 64-69 cm
YXL / 16-18	13+ years	115-140 lb / 52-64 kg	64-69 in / 163-175 cm	33-36 in / 84-91 cm	27-30 in / 69-76 cm

Teens may need adult sizes for height or length before chest and waist measurements fully match adult charts.

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.

Is height or weight better for kids clothing?

Height is often better for length, while weight helps estimate body width. Use both when possible.

What if my child is tall and slim?

Choose length by height and look for adjustable waists or slim cuts.

What if my child is between sizes?

Size up for growth room unless the garment must fit closely, such as certain uniforms or sleepwear.