What size is a 4 year old in kids clothing?

A typical 4 year old fits size 4 or 4T in US sizing, size 104 in EU sizing (based on height in cm), or age 3-4 years in UK sizing. However, always check measurements as children vary greatly in size.

What is the difference between 4 and 4T?

The 'T' in sizes like 4T stands for 'Toddler.' 4T sizes are designed for toddler body proportions with roomier seat for diapers and shorter torso. Size 4 (without T) is cut for older kids who are fully potty trained with slimmer fit.

How do I measure my child for clothing?

Measure height (without shoes), chest around the fullest part, waist at natural waistline, and hip at the widest point. Compare these to size charts rather than relying on age alone.

Should I size up for kids clothes?

If your child is between sizes or at the top of a size range, it's usually best to size up. Kids grow quickly, and slightly larger clothes last longer. However, too-big clothes can be a safety hazard for active play.

Kids Wear Age Guide

Kids Clothing Size Chart by Age: Complete Guide

Navigate children's sizing with confidence. Complete guide to baby, toddler, and kids sizes with US, UK, and EU conversions—plus tips for dealing with rapid growth.

Updated: January 2026

10 min read

Kids clothing size chart guide showing sizes for babies, toddlers, and children with age ranges

Important: Age is Just a Guide!

Children grow at very different rates. A tall 4-year-old might need size 6, while a smaller child might still fit in 3T. Always measure your child and compare to actual garment measurements.

👶 Baby Sizes (0-24 Months)

Baby Size Chart

Age	US	UK	EU	Height (cm)	Weight (lbs)
Newborn	NB	NB	50	up to 50	up to 8
0-3 months	0-3M	0-3M	56-62	56-62	8-12
3-6 months	3-6M	3-6M	68	63-68	12-16
6-9 months	6-9M	6-9M	74	69-74	16-20
9-12 months	9-12M	9-12M	80	75-80	20-24
12-18 months	12-18M	12-18M	86	81-86	24-28
18-24 months	18-24M	18-24M	92	87-92	28-30

🧒 Toddler Sizes (2T-5T)

What's the difference between 24M and 2T?

24M (24 Months)

Designed for babies still in diapers. Has roomier bottom, shorter torso, and often snaps at crotch.

2T (Toddler)

Designed for potty-trained toddlers. Slimmer fit, longer torso, regular waistband—no diaper room.

Age	US	UK	EU	Height (cm)	Weight (lbs)
2 years	2T	1.5-2	92	87-92	26-30
3 years	3T	2-3	98	93-98	30-33
4 years	4T / 4	3-4	104	99-104	33-38
5 years	5 / 5T	4-5	110	105-110	38-44

👦 Kids Sizes (4-14)

Age	US	UK	EU	Height (cm)	Chest (in)
5-6 years	6	5-6	116	111-116	22-23
6-7 years	7	6-7	122	117-122	23-24
7-8 years	8	7-8	128	123-128	25-26
9-10 years	10	9-10	140	135-140	27-28
11-12 years	12	11-12	152	147-152	29-30
13-14 years	14	13-14	164	159-164	31-32

📏 How to Measure Your Child

Height

Have your child stand barefoot against a wall. Mark the top of their head and measure from floor to mark.

Chest

Wrap tape measure around the fullest part of the chest, under the arms. Keep tape snug but not tight.

Waist

Measure around the natural waistline (where pants normally sit). For toddlers, this is usually at the belly button.

Inseam (for pants)

Measure from the crotch seam of well-fitting pants to the hem, or from crotch to ankle.

Create Kids Size Charts

Generate professional kids size charts with age ranges and measurements.

Create Free Size Chart

❓ Frequently Asked Questions

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