Underwear size chart

Every underwear size in US, EU, UK, JP, KR, CN, side by side, for men, women and kids. These are the conversion tables the MeSize app itself runs on, so a size you read here is the size the app would give you.

Men's Women's Kids'

Men's underwear sizes

Men's underwear size conversion between US, EU, UK, JP, KR, CN
USUnited States	EUEurope	UKUnited Kingdom	JPJapan	KRKorea	CNChina
XS	3	XS	S	85	XS
S	4	S	M	90	S
M	5	M	M	95	M
L	6	L	L	100	L
XL	7	XL	XL	105	XL
XXL	8	XXL	XXL	110	XXL
XXXL	9	XXXL	XXXL	115	XXXL

Women's underwear sizes

Women's underwear size conversion between US, EU, UK, JP, KR, CN
USUnited States	EUEurope	UKUnited Kingdom	JPJapan	KRKorea	CNChina
XS	34	6	S	44	34
XS	36	8	S	44	36
S	38	10	M	55	38
M	40	12	L	66	40
L	42	14	LL	77	42
XL	44	16	3L	88	44
XXL	46	18	3L	99	46

Kids' underwear sizes

Babies, toddlers and older kids on one continuous scale — NB to 14. Newborn sizes are the top rows.

Kids' underwear size conversion between US, EU, UK, JP, KR, CN
USUnited States	EUEurope	UKUnited Kingdom	JPJapan	KRKorea	CNChina
NB	50	NB	50	50	52
0-3M	56	0-3m	60	60	59
3-6M	62	3-6m	70	70	66
6-9M	68	6-9m	70	70	73
9-12M	74	9-12m	80	80	80
12-18M	80	12-18m	80	80	80
18-24M	86	18-24m	90	90	90
2T	92	2y	90	90	90
3T	98	3y	95	95	95
4T	104	4y	100	100	100
5	110	5y	110	110	110
6	116	6y	115	115	115
7	122	7y	120	120	120
8	128	8y	130	130	130
10	140	10y	140	140	140
12	152	12y	150	150	150
14	164	14y	160	160	160

How to measure

Waist cm: Measure around the natural waist, just above the hip bones, without pulling the tape tight.

Other size charts

MeSize

Stop looking this up. Save your sizes once — yours, your kids’, whoever you buy for — and carry every system in your pocket.

Get MeSize

USUnited States	EUEurope	UKUnited Kingdom	JPJapan	KRKorea	CNChina
XS	34	6	S	44	34
XS	36	8	S	44	36
S	38	10	M	55	38
M	40	12	L	66	40
L	42	14	LL	77	42
XL	44	16	3L	88	44
XXL	46	18	3L	99	46

USUnited States	EUEurope	UKUnited Kingdom	JPJapan	KRKorea	CNChina
XS	34	6	S	44	34
XS	36	8	S	44	36
S	38	10	M	55	38
M	40	12	L	66	40
L	42	14	LL	77	42
XL	44	16	3L	88	44
XXL	46	18	3L	99	46

USUnited States	EUEurope	UKUnited Kingdom	JPJapan	KRKorea	CNChina
XS	34	6	S	44	34
XS	36	8	S	44	36
S	38	10	M	55	38
M	40	12	L	66	40
L	42	14	LL	77	42
XL	44	16	3L	88	44
XXL	46	18	3L	99	46