Kalkulo

Clothing size converter

US to EU, UK and IT clothing size correspondences for men and women. Charts are indicative — always check the brand's own size guide.

USEUUKIT
434638
636840
8381042
10401244
12421446
14441648

About this tool

Why use this tool

US clothing and shoe sizes diverge from European, UK and Asian systems, and even between US brands. A US Women's 8 dress might fit like a European 38 or an Italian 42; US Men's shoe 10 = UK 9 = EU 43. Reliable conversion matters when shopping on ASOS, Zara Europe, Uniqlo Japan, buying imported athletic wear, or gifting internationally. There's no single ISO standard universally adopted — brands maintain proprietary size charts.

How it works

Conversion uses established equivalence tables. Women's dresses: US 8 = UK 12 = EU 40 = IT 44. Men's suits: US 40R = EU 50R = UK 40. Shoes: US Men's 10 = UK 9 = EU 43 = 27 cm (Mondopoint ISO 9407). Women's shoes: US 8 = UK 6 = EU 39 = 24 cm. Jeans use waist inches for men (US Men's 32 = 32-inch waist) and numeric sizes for women.

Real example

You want to order a dress from a European brand tagged size 40: that's a US 8 (Medium). A pair of Adidas sneakers in EU 43 = US Men's 10 = US Women's 11. A UK-made shirt collar 15.5" = US 15.5" = EU 39.

Practical tips

Always measure yourself precisely with a fabric tape: chest, waist, hips, inseam, shoe length in cm. Compare to the specific brand's size chart — FTC guidelines require accurate size labeling but tolerances vary. Measure feet at the end of the day when swollen. US brands like Old Navy, Gap and Levi's tend to run large (vanity sizing); European brands (Zara, H&M) run small; Japanese brands (Uniqlo) run smallest. Check return policies: Amazon, Zappos and Nordstrom offer free returns; smaller retailers may charge $8–$15. Use half-sizes for shoes and check width (D standard, EE wide, B narrow). International orders may hit customs duties above $800 (de minimis threshold).

Disclaimer

Conversions are approximate — every brand maintains its own chart. Verify the retailer's specific size guide and prefer measurements in inches/cm over letter or number codes. This tool doesn't replace trying on in-store. Return shipping from the US to Europe can cost $30+; factor this into online purchases.

Frequently asked questions

Why do clothing sizes differ so much between countries?⌄
There is no mandatory global standard. European sizes usually start from a chest or bust measurement in centimeters, while US and UK sizes use conventional numbers with no shared metric basis. On top of that, vanity sizing means many brands deliberately label garments a size smaller, so the same number fits differently from one label to the next.
How do I convert a US women's size to EU?⌄
As a rough guide, a US women's 4 is about EU 34-36, US 8 is about EU 38-40 and US 12 is about EU 42-44 for tops and dresses. Treat this as a starting point only and check the retailer's size chart in centimeters, because cut and fit vary widely by brand.
Are shoe size conversions reliable?⌄
They are approximate. US, UK and EU shoe sizes each start from a different zero and progress in different increments (a US size is about a half-size above the UK size for adults, and EU sizes run roughly 30-33 higher than US). Width is not captured at all. When a listing gives the insole length in centimeters or inches, measure your foot and use that instead.
What should I do if I'm between two sizes?⌄
For structured items (blazers, jeans, fitted shirts), sizing up leaves more room than a too-tight fit. Read customer reviews that flag "runs small" or "runs large", and check the return policy before ordering, since trying on is often the only way to be sure.
Do US brands run larger than European brands?⌄
Often, yes. Many US mass-market brands have applied vanity sizing over decades, so a US 8 today is larger than a US 8 from the 1990s and typically roomier than the nominal EU equivalent. European and especially Italian labels tend to run closer to the body. Always compare the garment's measurements, not the label.

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