One of the most common men's sizes, a 101 cm chest is US 40 and the second body carried under INT M, so an M can mean a 96 or a 101 cm chest.
EU to UK conversion
EU men's sizes run ten above UK ones, matching the US pattern, so EU 52 is UK 42 and EU 60 is UK 50. Since UK and US men's numbers are identical, this conversion behaves exactly like the EU to US one. The EU value doubles as a rough half-chest in centimetres, so where a UK inch label has drifted with vanity sizing, the EU number is the steadier reference for the body underneath.
At this size, EU to UK
One size up from EU 50, UK moves 2 to UK 42 while EU rises 2 to EU 52, holding their spacing. Both EU 50 and UK 40 are whole numbers here, so nothing rounds. For EU 50, the UK column here runs UK 38, UK 40, UK 42, stepping two numbers at a time.
Size Chart EU UK US INT 44 34 34 XS 46 36 36 S 48 38 38 M 50 40 40 M 52 42 42 L 54 44 44 L 56 46 46 XL
Frequently Asked Questions Does EU 50 round up or down in UK? Round to the chest for a jacket and to the larger figure if chest and waist disagree; a drop-two cut assumes a smaller waist, which not every body follows.
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Note UK and US men's sizes are typically identical EU sizes are approximately UK + 10 Fit varies by garment type - jackets vs shirts vs casual Clothing sizes vary significantly by brand See a number that looks off? Report an error on this page.