How do I convert trouser sizes to centimetres?

Multiply the waist in inches by 2.54. A 34-inch waist is about 86 cm, which is an EU 50.

Should I measure my waist or my trousers?

Measure a pair that already fits, flat across the waistband, and double it — that removes vanity sizing from the equation.

Do Asian trousers run small?

Yes, typically one to two sizes smaller through the hip and thigh than the equivalent US size.

Converters

Pants & Trousers Size Converter

Trouser labelling switches between inches, dress sizes and centimetres depending on where you shop. This converter aligns all of them against a single waist measurement.

Men's Pants size chart

Men's Pants size chart
INTL	US	UK	EU	AU	JP	KR	CN	IN	CA	MX	BR	IT	FR	RU	TR	ZA	Waist (in)	Waist (cm)
XS	28	28	44	28	71	71	71	28	28	44	38	44	44	44	44	28	28	71
S	30	30	46	30	76	76	76	30	30	46	40	46	46	46	46	30	30	76
S	32	32	48	32	81	81	81	32	32	48	42	48	48	48	48	32	32	81
M	34	34	50	34	86	86	86	34	34	50	44	50	50	50	50	34	34	86
M	36	36	52	36	91	91	91	36	36	52	46	52	52	52	52	36	36	91
L	38	38	54	38	97	97	97	38	38	54	48	54	54	54	54	38	38	97
L	40	40	56	40	102	102	102	40	40	56	50	56	56	56	56	40	40	102
XL	42	42	58	42	107	107	107	42	42	58	52	58	58	58	58	42	42	107
XXL	44	44	60	44	112	112	112	44	44	60	54	60	60	60	60	44	44	112

How to use this converter

Pick the garment category you are shopping for.
Choose the country or size system you already know, then the one you want to convert to.
Select your size — every supported country updates instantly.
Check the body-measurement columns to confirm the fit, then copy, print or share the result.

Why sizes differ between countries

Size labels come from national fit blocks developed decades ago from different population surveys. The US and UK use garment-based numbering, most of Europe derives sizes from body measurements in centimetres, and Japan, Korea and China use their own regional standards. Because no global standard exists, matching your measurements to the chart is always more reliable than matching the label.

Frequently asked questions

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Jacket & Coat Size Converter

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International Clothing Size Converter

Convert clothing, shoe and lingerie sizes between US, UK, EU, AU, JP, KR, CN, IN and 8 more systems. Free, instant and works entirely in your browser.

INTL	US	UK	EU	AU	JP	KR	CN	IN	CA	MX	BR	IT	FR	RU	TR	ZA	Waist (in)	Waist (cm)
XS	28	28	44	28	71	71	71	28	28	44	38	44	44	44	44	28	28	71
S	30	30	46	30	76	76	76	30	30	46	40	46	46	46	46	30	30	76
S	32	32	48	32	81	81	81	32	32	48	42	48	48	48	48	32	32	81
M	34	34	50	34	86	86	86	34	34	50	44	50	50	50	50	34	34	86
M	36	36	52	36	91	91	91	36	36	52	46	52	52	52	52	36	36	91
L	38	38	54	38	97	97	97	38	38	54	48	54	54	54	54	38	38	97
L	40	40	56	40	102	102	102	40	40	56	50	56	56	56	56	40	40	102
XL	42	42	58	42	107	107	107	42	42	58	52	58	58	58	58	42	42	107
XXL	44	44	60	44	112	112	112	44	44	60	54	60	60	60	60	44	44	112

INTL	US	UK	EU	AU	JP	KR	CN	IN	CA	MX	BR	IT	FR	RU	TR	ZA	Waist (in)	Waist (cm)
XS	28	28	44	28	71	71	71	28	28	44	38	44	44	44	44	28	28	71
S	30	30	46	30	76	76	76	30	30	46	40	46	46	46	46	30	30	76
S	32	32	48	32	81	81	81	32	32	48	42	48	48	48	48	32	32	81
M	34	34	50	34	86	86	86	34	34	50	44	50	50	50	50	34	34	86
M	36	36	52	36	91	91	91	36	36	52	46	52	52	52	52	36	36	91
L	38	38	54	38	97	97	97	38	38	54	48	54	54	54	54	38	38	97
L	40	40	56	40	102	102	102	40	40	56	50	56	56	56	56	40	40	102
XL	42	42	58	42	107	107	107	42	42	58	52	58	58	58	58	42	42	107
XXL	44	44	60	44	112	112	112	44	44	60	54	60	60	60	60	44	44	112