Men's EU to UK Clothing Size Chart

EU	UK	INT
44	34	XS
46	36	S
48	38	M
50	40	M
52	42	L
54	44	L
56	46	XL
58	48	XL
60	50	XXL
62	52	XXL

UK and US men's clothing sizes are identical, so the US column matches UK.

Letter sizes (XS to XXL) in numbers

Size	US	UK	EU
XS	34	34	44
S	36	36	46
M	38-40	38-40	48-50
L	42-44	42-44	52-54
XL	46-48	46-48	56-58
XXL	50-52	50-52	60-62

Plus and extended sizes

US	Letter	UK	EU	Chest (cm)
54-56	3XL	54-56	64-66	136-141
58-60	4XL	58-60	68-70	146-151
62-64	5XL	62-64	72-74	156-161

Note: Men's big-and-tall letter sizes are not fully standardised: some makers shift the whole ladder up, labelling a 46 to 48 inch chest as 2XL instead of XL, so these are the most common convention rather than a fixed rule. Chest in centimetres continues the site's own chart at about 5 cm per two inches.

Sources

American Roots, men's size chart (americanrootswear.com): letter to chest-inch ladder S to 5XL
sizeguide.net, men's size chart with chest in inches and centimetres to XXXL
Big Fish Clothing, Big and Tall size guide (bigfishclothing.co.uk): documents the shifted big-and-tall letter ladder
Wikipedia, US standard clothing size (references ASTM D6240 for men, chest 34 to 60)

A centimetre chest number and a British label

UK holds a steady 10 below EU at every row of this chart, so EU 54 converts to UK 44 and the same gap carries from the smallest size to the largest. A single step converts the whole range cleanly.

The European men's size approximates the chest in centimetres halved, and the British number carries the same chest in its own units, so the two hold a fairly steady gap. Both describe the body rather than the garment, which means ease still decides fit: the same chest number tailored as a suit jacket or a knit sits differently on the shoulders. Because EN 13402 stays voluntary, national rounding shifts the European figure slightly between German, French and Italian makers on one rail.

Common questions

Why is there a clean EU to UK step for menswear?

Both numbers describe the chest, so they hold a steady relationship instead of drifting like women's vanity scales.

Does the EU number tell me how a jacket will fit?

It tells you the chest it is cut for, not the ease. Garment style still decides how close or roomy that chest number feels.

Men's clothing size charts · How to measure your body · Asian clothing sizes · Vanity sizing