Boys Size Chart | Shirts, Pants, Shoes

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As a parent, one of your main responsibilities is to buy clothes for your son. However, in a world where there is no such thing as a universal sizing standard observed by all apparel manufacturers, this seemingly easy task is actually no cakewalk. And so, to help you determine your little boy’s clothing size with ease, this page provides you access to different boys size charts of various clothes and apparels.

Boys Sizes in a Nutshell

Clothing sizes for boys are usually based on age, height, and weight. However, the best way to find the perfect fit for your son is to get accurate measurements of several key areas of his body such as the chest, waist, hip, inseam, and height. You may also need to record your neck base and sleeve length measurements. Then, refer to a reliable size chart so you can determine the appropriate clothing size for him.
As much as possible, refer to the published size charts of the particular clothing brand you plan on buying from. Generic size charts serve as a decent guide, but they may not be as accurate.
To measure your son’s shoe size, trace the outline of both his feet on a sheet of paper. His foot length is from the top of the longest toe to the edge of the heel. The broadest part is the width. His shoe size must fit the larger foot.

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Measurement Guide for Boys

Clothing sizes for kids are usually based on age, height, and weight. However, the best way to find the perfect fit for your son is to get accurate measurements of several key areas of his body. To do this, you need a cloth measuring tape, and when you take measurements, it is best to do it over bare skin or, at the very least, tight-fitting clothes.

Chest. When measuring the fullest part of your son’s chest area, make sure he is standing straight, with his arms relax at his side. Leave a bit of room by adding an inch or so, depending on your or your kid’s preference.
Waist. Measure your son’s natural waist – the smallest area of the trunk. This is usually found near the belly button area.
Hip. Use a tape measure and wrap it around the biggest part of your hips. Add an extra inch or so if you want additional comfort and for ease of movement.
Inseam. Begin measuring from your upper and inner thigh (near the crotch area) and bring the cloth measuring tape down to your son’s ankle.
Height. Make sure your son takes his shoes off before measuring his height. Use a door frame as a measuring point so that he can stand straight.

After you’ve successfully taken your son’s body measurements, it’s time to pick up a reliable size chart so you can determine the appropriate clothing size for him.

Pro Tip: Make your shopping experience easier by keeping an updated record of your son’s body measurements on your phone or inside your wallet. But if possible, bring your child with you whenever you go shopping. He can just try on the clothes, and you’ll immediately know if they fit him well before you buy them.

If you also need help with girls sizes, click here.

Boys Clothing Size Chart (Standard)

Below is a sample clothing size chart for boys who fit regular sizing between the ages 3 and 13.

General Size	US Size	Age	Height (in.)	Chest (in.)	Waist (in.)	Hips (in.)
XS	4	3 - 4	39 - 41 ½	23	21	23
XS	5	4 - 5	42 - 44 ½	24	21 ½	24
S	6	5 - 6	45 - 47 ½	25	22 ½	25
S	7	6 - 7	48 - 49 ½	26	23 ½	26
M	8	7 - 8	50 - 52	26 ½	24 ½	27 ½
L	10	8 - 9	52 ½ - 55 ½	27	25 ½	28 ½
L	12	9 - 10	56 - 58	28	26 ½	30
XL	14	10 - 11	58 ½ - 60 ½	29 ½	27 ½	31 ½
XL	16	11 - 12	61 - 64	31	29	33
XXL	18	12 - 13	64 ½ - 66 ½	32 ½	30	34

Boys’ Plus/Husky Sizes

Below is a sample clothing size chart for boys whose measurements are slightly bigger compared to regular sizing.

US Size	Height (in.)	Chest (inches)	Waist (in.)	Hips (in.)
8 HUSKY	49 - 51	30	29	30 ½
10 HUSKY	51 ½ - 54 ½	30 ½	30	31 ½
12 HUSKY	55 - 57	31 ½	31	33
14 HUSKY	57 ½ - 59 ½	33	32	34 ½
16 HUSKY	60 - 63	34 ½	33 ½	36
18 HUSKY	63 ½ - 65 ½	36	34 ½	37

Boys’ Slim Sizes

Below is a sample clothing size chart for boys whose measurements are slightly smaller compared to regular sizing.

US Size	Height (in.)	Chest (in.)	Waist (in.)	Hips (in.)
8 SLIM	50 - 52	25 ½	21 ½	25 ½
10 SLIM	52 ½ - 55 ½	26 ½	22 ½	26 ½
12 SLIM	56 - 58	27	23 ½	28 ½
14 SLIM	58 ½ - 60 ½	28 ½	24 ½	30 ½
16 SLIM	61 - 64	30	25 ½	32
18 SLIM	64 ½ - 66 ½	32 ½	26 ½	33

Conversion to International Sizes

Different standards, voluntary or required, are observed by different countries when it comes to classifying and labeling clothing sizes. In the United States, for example, children’s sizes are labeled according to age. Although slightly varied, the same applies in the United Kingdom and Australia. European sizing for kids, however, is a bit different. Size labels are based on the child’s height, not age.

You will have plenty of opportunities to buy clothes from international brands who may follow a different sizing system from what you’re accustomed to. That is why many find international conversion charts helpful. Should you decide to refer to one, it is recommended that you use a sizing guide that includes specific body measurements to get a more accurate fit. However, don’t forget that these conversion charts are not 100% successful in identifying your child’s clothing sizes in foreign brands. At best, they are just approximations.

Age	US	UK	Europe	Australia
4-5	5	4-5	104-110 cm	5
5-6	6	5-6	110-116 cm	6
6-7	6X-7	6-7	116-122 cm	7
7-8	7 to 8	7-8	122-128 cm	8
8-9	9 to 10	8-9	128-134 cm	9
9-10	10	9-10	134-140 cm	10
10-11	11	10-11	140-146 cm	11
11-12	14	11-12	146-152 cm	12

Boys to Men Size Conversion

To convert boys’ clothes sizes into men’s, please be aware that boys’ shirts and pants are cut differently from men clothes. In terms of finding the right size, it is best to take measurements of your body and refer to the size charts of the clothing producer. In most cases however you will need to take the largest size of boys clothes if you normally wear the smallest size of men clothes (and vice versa).

Boys’ Pants and Jeans Size Chart

To find the perfect-fitting pants or jeans for your son, you need take measurements of his (1) waist, (2) hips, and (3) inseam. For his comfort and movement, add an extra inch where you think it best applies.

Boys’ Pants Size Chart – Regular

GENERAL SIZE	US SIZE	AGE	HEIGHT (in.)	WEIGHT (lbs.)	WAIST (in.)	HIP (in.)	INSEAM (in.)
XS	4	3 - 4	38 - 41	35 - 39	21.5 - 22	22 - 23	15.5 - 17
S	5	4 - 5	41 - 44	39 - 45	22 - 22.5	23 - 24	17 - 18.75
S	6	5 - 6	44 - 46.5	45 - 50	22.5 - 23	24 - 25	18.75 - 20.25
M	7	6 - 7	46.5 - 49.5	50 - 58	23 - 23.5	25 - 26.5	20.25 - 23.25
M	8	7 - 8	49.5 - 52	58 - 68	23.5 - 24.5	26.5 - 27.75	23.25 - 24.25
L	10	8 - 9	52 - 55.5	68 - 87	24.5 - 25.5	27.75 - 29	24.25 - 25.5
L	12	9 - 10	55.5 - 58.5	87 - 100	25.5 - 26.5	29 - 30.5	25.5 - 27.25
XL	14	10 - 11	58.5 - 61.5	100 - 110	26.5 - 28	30.5 - 32	27.25 - 29.75
XXL	16	11 - 12	61.5 - 64	110 - 120	28 - 29.5	32 - 33.5	29.75 - 31
XXXL	18	12 - 13	64 - 65.5	120 - 125	29.5 - 31	33.5 - 35	31 - 31.5

Boys’ Pants Size Chart – Plus/Husky

GENERAL SIZE	US SIZE	AGE	HEIGHT (in.)	WEIGHT (lbs.)	WAIST (in.)	HIP (in.)	INSEAM (in.)
XS	4H	3 - 4	38 - 41	45 - 50	24 - 24.5	24.5 - 25.5	15 - 16.5
S	5H	4 - 5	41 - 44	50 - 58	24.5 - 25	25.5 - 26.5	16.5 - 18.25
S	6H	5 - 6	44 - 46.5	58 - 68	25 - 25.5	26.5 - 27.5	18.25 - 19.75
M	7H	6 - 7	46.5 - 49.5	68 - 87	25.5 - 26	27.5 - 29	19.75 - 22.75
M	8H	7 - 8	49.5 - 52	87 - 100	26 - 27	29 - 30.25	22.75 - 23.75
L	10H	8 - 9	52 - 55.5	100 - 110	27 - 28	30.25 - 31.5	23.75 - 25
L	12H	9 - 10	55.5 - 58.5	110 - 120	28 - 29	31.5 - 33	25 - 26.75
XL	14H	10 - 11	58.5 - 61.5	120 - 125	29 - 30.5	33 - 34.5	26.75 - 29.25
XXL	16H	11 - 12	61.5 - 64	125 - 134	30.5 - 32	34.5 - 36	29.25 - 30.5
XXXL	18H	12 - 13	64 - 65.5	134 - 143	32 - 33.5	36 - 37.5	30.5 - 31

Boys’ Pants Size Chart – Slim

GENERAL SIZE	US SIZE	AGE	HEIGHT (in.)	WEIGHT (lbs.)	WAIST (in.)	HIP (in.)	INSEAM (in.)
XS	4S	3 - 4	38 - 41	32 - 35	19.5 - 20	20 - 21	15.5 - 17
S	5S	4 - 5	41 - 44	35 - 39	20 - 20.5	21 - 22	17 - 18.75
S	6S	5 - 6	44 - 46.5	39 - 45	20.5 - 21	22 - 23	18.75 - 20.25
M	7S	6 - 7	46.5 - 49.5	45 - 50	21 - 21.5	23 - 24.5	20.25 - 23.25
M	8S	7 - 8	49.5 - 52	50 - 58	21.5 - 22.25	24.5 - 25.75	23.25 - 24.25
L	10S	8 - 9	52 - 55.5	58 - 68	22.5 - 23.5	23.75 - 27	24.25 - 25.5
L	12S	9 - 10	55.5 - 58.5	68 - 87	23.5 - 24.5	27 - 28.5	25.5 - 27.25
XL	14S	10 - 11	58.5 - 61.5	87 - 100	24.5 - 26	28.5 - 30	27.25 - 29.75
XXL	16S	11 - 12	61.5 - 64	100 - 110	26 - 27.5	30 - 31.5	29.75 - 31
XXXL	18S	12 - 13	64 - 65.5	110 - 120	27.5 - 29	31.5 - 33	31 - 31.5

Pro Tip: As much as possible, refer to the published size charts of the particular clothing brand you plan on buying from. Generic size charts serve as a decent guide, but they may not be as accurate.

Boys Shirt Size Chart by Age

To know your child’s corresponding shirt or sweater size, measure the following body areas: (1) chest, (2) waist, and if it applies, (3) sleeve length.

GENERAL SIZE	US SIZE	AGE	HEIGHT (in.)	WEIGHT (lbs.)	CHEST (in.)	WAIST (in.)
XS	4	3 - 4	38 - 41	35 - 39	21 - 22	21.5 - 22
S	5	4 - 5	41 - 44	39 - 45	22 - 23	22 - 22.5
S	6	5 - 6	44 - 46.5	45 - 50	23 - 24	22.5 - 23
M	7	6 - 7	46.5 - 49.5	50 - 58	24 - 25.5	23 - 23.5
M	8	7 - 8	49.5 - 52	58 - 68	25.5 - 26.5	23.5 - 24.5
L	10	8 - 9	52 - 55.5	68 - 87	26.5 - 27.5	24.5 - 25.5
L	12	9 - 10	55.5 - 58.5	87 - 100	27.5 - 28.5	25.5 - 26.5
XL	14	10 - 11	58.5 - 61.5	100 - 110	28.5 - 30.5	26.5 - 28
XXL	16	11 - 12	61.5 - 64	110 - 120	30.5 - 32	28 - 29.5
XXXL	18	12 - 13	64 - 65.5	120 - 125	32 - 33.5	29.5 - 31

Boys’ Jacket Sizes

When measuring your son’s jacket size, you need to record his (1) chest, (2) waist, and (3) sleeve length measurements.

General Size	U.S. Size	Height (in.)	Chest (in.)	Sleeve Length (in.)
XS	5	42-45	23	20.5
S	6	45-48	24	21.75
S	7	48-51	25	23.25
M	8	51-54	26.5	24.5
L	10	54-57	28	26
L	12	57-60	29	27.5
XL	14	60-63	30.5	28.5
XL	16	63-65	31.5	29.5
XXL	18	65-67	32.5	30.5

Pro Tip: Purchase clothes that are one size larger than your son’s actual clothing size. Growth spurts are inevitable in children, and it’s best to buy clothing he can grow into than something he could soon outgrow. This way is cost-effective, and your child could get to enjoy wearing the clothes he likes for much longer.

Boys’ Suit Sizes

Before buying a suit for your child, make sure you have an updated record of his (1) neck base, (2) chest, (3) waist, and (4) sleeve length measurements.

GENERAL SIZE	U.S. SIZE	HEIGHT (in.)	CHEST (in.)	NECK BASE (in.)	SLEEVE (in.)
XS	4	40.5 - 45.5	22 - 24	10.75 - 11.5	18.75 - 21.25
XS	6	40.5 - 45.5	22 - 24	10.75 - 11.5	18.75 - 21.25
S	8	47 - 50	26 - 27	11.75 - 12.25	22.75 - 23.75
M	10	53 - 57	28 - 29.5	12.75 - 13.25	25.25 - 27.25
M	12	53 - 57	28 - 29.5	12.75 - 13.25	25.25 - 27.25
L	14	60 - 63	31 - 32.5	13.75 - 14.25	28.75 - 30.25
L	16	60 - 63	31 - 32.5	13.75 - 14.25	28.75 - 30.25
XL	18	65.5 - 67.5	34 - 35.5	14.75 - 15.25	31.25 - 32.25
XL	20	65.5 - 67.5	34 - 35.5	14.75 - 15.25	31.25 - 32.25

Boys’ Underwear Sizes

GENERAL SIZE	U.S. SIZE	HEIGHT (in.)	WEIGHT (lbs.)	CHEST (in.)	WAIST (in.)
XXS	2	33.5 - 38	30 - 35	20 - 21	20.5 - 21.5
XXS	3	33.5 - 38	30 - 35	20 - 21	20.5 - 21.5
XS	4	38 - 41	35 - 39	21 - 22	21.5 - 22
S	5	41 - 46.5	39 - 50	22 - 24	22 - 23
S	6	41 - 46.5	39 - 50	22 - 24	22 - 23
M	7	46.5 - 52	50 - 68	24 - 26.5	23 - 24.5
M	8	46.5 - 52	50 - 68	24 - 26.5	23 - 24.5
L	10	52 - 58.5	68 - 100	26.5 - 28.5	24.5 - 26.5
L	12	52 - 58.5	68 - 100	26.5 - 28.5	24.5 - 26.5
XL	14	58.5 - 61.5	100 - 110	28.5 - 30.5	26.5 - 28

Boys’ Shoe Size Charts

How to measure your son’s shoe size: Trace the outline of both your child’s feet on a sheet of paper. His foot length is from the tip of the longest toe to the edge of the heel. The broadest part of his foot is the width. You may notice that one foot is bigger than the other. In that case, choose a shoe size that fits the larger foot. Use these charts to find adult sizes.

Little Boys’ Shoe Size Chart

Foot Length (in.)	Foot Length (cm.)	U.S. Size	U.K. Size	E.U. Size	Canadian Size	Japanese Size
7 1/4	18.4	12.5	11.5	30	12.5	19
7 1/2	19.1	13	12	31	13	19.5
7 5/8	19.4	13.5	12.5	31	13.5	20
7 3/4	19.7	1	13	32	1	20.5
8	20.3	1.5	13.5	33	1.5	21
8 1/8	20.6	2	1	33	2	21.5
8 1/4	21	2.5	1.5	34	2.5	21.5
8 1/2	21.6	3	2	34	3	22

Big Boys’ Shoe Size Chart

Foot Length (in.)	Foot Length (cm.)	U.S. Size	U.K. Size	E.U. Size	Canadian Size	Japanese Size
8 5/8	21.9	3.5	2.5	35	3.5	22.5
8 3/4	22.2	4	3	36	4	23
9	22.9	4.5	3.5	36	4.5	23.5
9 1/8	23.2	5	4	37	5	24
9 1/4	23.5	5.5	4.5	37	5.5	24.5
9 1/2	24.1	6	5	38	6	25
9 5/8	24.4	6.5	5.5	38	6.5	25.5
9 3/4	24.8	7	6	39	7	26

Pro Tip: Buy shoes that have some wiggle room for your son’s toes so that his feet can breathe and roll freely in the shoes while he walks in them. A helpful trick is to add 0.5 – 0.7 inches to his actual foot length.

A more detailed discussion on shoe sizes for kids is available here.