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US, UK or EU Sizing? The Only Conversion Guide You'll Need

Updated July 2026 · 8 min read

You've found the dress. It ships to your country. And then the size dropdown says EU 38, and you have absolutely no idea whether that's you.

This is the single most common reason people abandon an international order — not price, not shipping, but the quiet fear of ordering the wrong size and dealing with a return across a border. Here are the conversions you need, and — more usefully — the reasons the charts sometimes lie.

Women's clothing

The reliable rule of thumb: UK = US + 4, and EU = US + 30. So a US 6 is a UK 10 and an EU 36.

Women's clothing size conversion
USUKEUItaly (IT)General
043036XXS
263238XS
483440XS–S
6103642S
8123844M
10144046M–L
12164248L
14184450XL
16204652XL–XXL
18224854XXL

The Italian trap. Italian labels run on their own scale — roughly EU + 6. Plenty of luxury brands (and the resale market full of them) label in IT, not EU. If a listing says "size 42" on an Italian brand, that's a US 6, not a US 12. Getting this backwards is the most expensive sizing mistake in fashion.

Women's shoes

Shoes are where conversion charts are least trustworthy, because EU shoe sizing doesn't map cleanly onto US or UK increments. Treat this as a starting point, not gospel.

Women's shoe size conversion
USUKEUFoot length
5335–3622.0 cm
6436–3722.9 cm
7537–3823.8 cm
8638–3924.6 cm
9739–4025.4 cm
10840–4126.2 cm
11941–4227.1 cm

Ignore the size, use the centimetres. Foot length is the only number that doesn't lie. Stand on paper, mark heel and longest toe, measure the distance, add about 0.5cm of wiggle room, and match that against the store's cm column. Measure in the evening — feet swell through the day, and a shoe fitted at 9am can be tight by 6pm.

Men's clothing

Men have it easier: US and UK jacket/suit sizes are identical, and EU is simply US + 10. Shirts are sized by collar measurement, which is refreshingly honest.

Men's suits, jackets & coats
US / UKEUChestGeneral
344434" / 86 cmXS
364636" / 91 cmS
384838" / 97 cmS–M
405040" / 102 cmM
425242" / 107 cmL
445444" / 112 cmL–XL
465646" / 117 cmXL
485848" / 122 cmXXL
Men's shoes
USUKEUFoot length
7639–4025.0 cm
874125.9 cm
984226.7 cm
1094327.5 cm
111044–4528.3 cm
121145–4629.2 cm
131246–4730.0 cm

Browse men's and shoes — and check what's popular before you size up:

Why the chart is only half the answer

Here's the uncomfortable truth that sizing guides rarely admit: there is no legally enforced sizing standard. "US 8" means whatever each brand decides it means. Two dresses, same size label, same country — and a full inch of difference in the waist.

Three things distort a size beyond the chart:

The size on the label is a suggestion. The measurements in centimetres are the fact.

Measure yourself once. Use it forever.

Ten minutes with a soft tape measure will save you more failed orders than any conversion chart. Write these down and keep them in your phone:

  1. Bust / chest — around the fullest part, tape level, arms down.
  2. Waist — the narrowest point, usually just above the navel. Don't hold your breath in; you'll have to wear it.
  3. Hips — around the fullest part, usually about 20cm below the waist.
  4. Inseam — from crotch to ankle, along the inside of the leg. Measure a pair of trousers that already fit rather than yourself; it's easier and more accurate.
  5. Foot length — heel to longest toe, standing, in the evening.

The measurement that actually matters: whichever one is largest relative to the chart. If your bust says M but your hips say L, buy the L — you can take a garment in, but you can't add fabric that isn't there.

Ordering internationally with confidence

Sizing is only nerve-wracking when a return is expensive. A few habits make the whole thing low-risk:

Every store we feature ships worldwide, and prices are shown in your own currency — so the only thing left to get right is the size. Start with women's, men's, or see what's discounted right now:

Know your size? Now find the piece.

Shop Worldwide-Shipping Fashion
Fashion to World is a discovery platform — we compare products from worldwide-shipping stores and send you directly to the retailer to buy. We don't sell anything ourselves. We may earn a commission when you shop through our links, at no extra cost to you. Size charts above are general guides; always check the individual store's own measurements before ordering.