UK 18 = EU 46

A women’s UK size 18 is EU 46 — the same as French 46. It equals US 14, Italian 50, German 44 and Russian 52; in letter sizes it is usually L.

UK 18 in every size system

UK
18
EU
46
US
14
France (FR)
46
Italy (IT)
50
Germany (DE)
44
Russia (RU)
52
Letter size
L

Sizes around UK 18

UKEUUSFRITDERU
UK 16441244484250
UK 18461446504452
UK 20481648524654

Why size charts disagree

“EU” sizes on most labels follow the French numbering, so UK 10 = EU 38. German brands use numbers 2 lower (UK 10 = DE 36), and some charts call those “EU” too. If a German brand’s 36 fits you, look for 38 at most other brands. Brands also differ slightly, so check the shop’s own chart when you are between sizes.

Full UK to EU size chart →

FAQ

What is UK size 18 in EU?
UK 18 is EU 46 in the standard (French-based) EU sizing. In German sizing it is 44.
What is UK size 18 in US?
UK 18 is US 14. Women’s US sizes are 4 lower than UK sizes.
Is UK 18 small, medium or large?
UK 18 usually corresponds to letter size L, but letter sizes vary between brands.