Kids Jacket Size Chart: Chest, Height, Sleeves & Layering Room

Kids jacket size chart with chest, height, layering room and fit notes for toddler, little kid and youth outerwear.

Kids jacket size chart

Jackets need chest room plus sleeve length and layering allowance.

Size	Chest	Height	Layering room	Fit note
2T-3T	20-22 in / 51-56 cm	33-38 in / 84-97 cm	Light fleece or tee	Size up for winter layers
4-5	22-24 in / 56-61 cm	38-44 in / 97-112 cm	Light sweater	Check sleeve length
6-7	24-26 in / 61-66 cm	44-50 in / 112-127 cm	Sweatshirt layer	Adjustable cuffs help
8-10	26-29 in / 66-74 cm	50-56 in / 127-142 cm	Hoodie layer	Youth medium range
12-14	29-33 in / 74-84 cm	56-64 in / 142-163 cm	Hoodie or sweater	Consider adult XS if tall
16-18	33-36 in / 84-91 cm	64-69 in / 163-175 cm	Adult-like layers	Youth XL to adult S bridge

For winter coats, size up if the child is between sizes or will wear bulky layers underneath.

Use chest and height for T-shirts, polos, button-downs and school tops.

Size	Chest	Garment length guide	Height	Fit note
2T	20-21 in / 51-53 cm	13-14 in / 33-36 cm	33-35 in / 84-89 cm	Toddler cut with diaper-friendly body length
3T	21-22 in / 53-56 cm	14-15 in / 36-38 cm	35-38 in / 89-97 cm	Toddler proportion
4 / 4T	22-23 in / 56-58 cm	15-16 in / 38-41 cm	38-41 in / 97-104 cm	Size 4 may be slimmer than 4T
5-6	23-25 in / 58-64 cm	16-18 in / 41-46 cm	41-48 in / 104-122 cm	Little kid range
7-8	25-27 in / 64-69 cm	18-20 in / 46-51 cm	48-53 in / 122-135 cm	Check sleeve for long arms
10-12	28-31 in / 71-79 cm	20-23 in / 51-58 cm	53-60 in / 135-152 cm	Youth medium range
14-16	32-35 in / 81-89 cm	23-26 in / 58-66 cm	60-67 in / 152-170 cm	Youth large to adult XS/S crossover

For uniforms and button-down shirts, allow enough chest room so the shirt does not pull when sitting or reaching.

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.

Use the complete kids apparel chart.

Review general jacket fit and layering guidance.

Use chest and height for tops underneath.

Should I size up kids jackets?

Often yes if layering or growth room is needed, but sleeves and shoulders should still be manageable.

How do I measure chest for a kids jacket?

Measure around the fullest part of the chest with arms relaxed, keeping the tape level.

What if sleeve length is too long?

Adjustable cuffs help. If sleeves cover hands too much, try a shorter size or different brand cut.