The quick answer: for women’s clothing, add 32 to the US size to get the EU size (US 8 = EU 40). For men’s tops and jackets, add 10 to the chest in inches (US 40 = EU 50). Add 4 to a women’s US size for the UK. Those rules get you in the neighborhood. They do not get you a guaranteed fit, because no body regulates clothing sizes worldwide. When a piece is a limited run that never gets restocked, you can’t afford a neighborhood guess. Convert with the numbers below, then confirm with a tape measure.

We’ve been making streetwear in Philadelphia since 2006, and sizing is where most fit mistakes start. Here’s how the systems really work, with tables you can use right now.

TL;DR

• Women’s: EU = US + 32, UK = US + 4. A US 8 is a UK 12 and an EU 40.
• Men’s tops and jackets: EU = US chest in inches + 10. A US 40 is an EU 50.
• Men’s trousers: EU = waist in inches + 16. A W32 is an EU 48.
• EU numbers shift by country (France and Italy run higher), and US numbers shift by brand. Measure your body, then compare to the size chart.
• Letter sizes (S, M, L) are the least reliable label of all. Use centimeters or inches.

Table of Contents

• Why US and EU sizes don’t match
• Women’s clothing: US to EU and UK
• Men’s tops, jackets and hoodies: US to EU
• Trousers and shorts
• What about US vs UK?
• Streetwear adds its own layer
• How to measure so the conversion doesn’t matter
• Why the same size fits differently across brands
• Quick conversion cheat sheet
• Shop HRDLF with your numbers ready
• Perspective
• FAQ
• Sources

Why US and EU sizes don’t match

The two systems are built on different logic.

European clothing labels are meant to follow a body-measurement standard. EN 13402 is based on body dimensions in centimeters, and its labels are supposed to show a range of body measurements instead of one garment dimension. US women’s sizing has a different history. US misses numbers are older catalog labels with no direct link to a measurement, and the same source notes that brands have relabeled the same body with smaller numbers over time, so a US 8 today is roomier than a US 8 from decades ago.

There is a US reference table, but it’s a baseline, not a law. ASTM’s D5585 standard table of body measurements lists measurements for misses sizes 2 through 20 and describes them as a starting point for designing apparel, once you factor in fabric, ease, styling and fit. Brands can start there and still land anywhere.

The result: a size is a local agreement, not a measurement. Conversion charts are compiled approximations. Treat every chart, including ours, as a starting point.

Women’s clothing: US to EU and UK

For women’s numeric sizes, the common offsets are +4 for the UK and +30 or +32 for Europe depending on the label’s country. Many calculators use UK = US + 4 and EU = US + 32, which gives the most widely printed result: a US 8 is a UK 12 and an EU 40.

Two things to know before you trust a row.

EU numbers aren’t the same in every European country. Two conventions, German-style and French-style, differ by one size, which is why a blanket “US 8 = EU 38” conversion doesn’t hold everywhere. Charts also split on whether French labels add two sizes and Italian labels add four on top of the base EU number. So a dress that is a 40 in Germany can be a 42 in France and a 44 in Italy. If a label says EU, check which country’s convention the brand uses.

The body behind the number. A US 8 is commonly listed as fitting a 35 to 36.5 inch bust and a 28 to 30 inch waist (90 to 93 cm and 73 to 77 cm). If your measurements land there, a US 8 is your starting point. If a brand’s chart says otherwise, trust the brand’s chart for that brand.

Men’s tops, jackets and hoodies: US to EU

Men’s sizing is simpler on paper. US and UK jacket sizes are the chest in inches. EU jacket sizes use half the chest girth in centimeters, and the conventional shortcut is to add 10 to the inch size.

Check the math yourself. A 40 inch chest is 101.6 cm. Half of that is 50.8, so an EU 50 is the right ballpark. The shortcut works because 2.54 cm per inch divided by two comes out to roughly 1.27 per inch, close enough to a flat +10 across the common range.

That’s for tailored-style numbering. Most streetwear doesn’t use it. Hoodies, tees and crewnecks usually come in S to XXL, and that’s where it gets slippery. Letter sizing isn’t standardized, and brands define the labels differently. A US medium is not an EU medium by any rule. Use the brand’s chest and length measurements in inches or centimeters and compare them to a garment you already own. Our 20 inch benchmark guide for T-shirt sizing walks through exactly that comparison.

Trousers and shorts

EU men’s trousers are sized as waist in inches plus 16, so a W32 is an EU 48. A W30 is a 46, a W34 is a 50, a W36 is a 52.

US jeans and skate pants add a second number, the inseam, which EU numbering usually leaves out. If you’re ordering from a US brand while living in Europe, or the other way around, the waist conversion is the easy part. Inseam is the part that goes wrong. Measure a pair that fits you and compare the inseam directly.

What about US vs UK?

For women, the UK runs four numbers above the US. A US 0 is a UK 4, a US 8 is a UK 12, a US 20 is a UK 24. For men’s clothing, US and UK sizes are very similar, with chest in inches on both sides. That’s why a US 40 jacket and a UK 40 jacket are the same chest, while a US 8 dress and a UK 8 dress are four sizes apart.

The UK to EU step then follows the same pattern as the table above: UK 12 is EU 40 in the common conversion.

Streetwear adds its own layer

Conversion charts were built around dresses and suits. Streetwear breaks the assumptions.

• Unisex cuts. One size run covers men and women, so women’s numeric conversions don’t apply. Read the garment measurements, then decide how you want it to sit. Our guide to measuring unisex streetwear covers it.
• Intentional oversize. A boxy hoodie is cut wide on purpose. If you convert from a fitted EU size and then size up for “relaxed”, you can end up in a tent.
• Dropped shoulders and cropped lengths. Chest alone won’t tell you how a piece fits. Length and shoulder width matter just as much.
• Heavyweight fabric. Thick fleece and heavy cotton sit differently than thin knit. Two pieces with the same chest number can wear differently.

One thing helps: European and Italian luxury labels often cut slimmer than standard US sizing, while many US labels run roomier. If you’re a European shopper buying from a US label, expect to pick the number based on measurements, not on a conversion from what you usually wear.

How to measure so the conversion doesn’t matter

A conversion gets you a candidate size. A measurement tells you whether it fits. Do it before you order.

1. Grab a flexible tape. Keep it horizontal and snug, not tight. For the bust or chest, measure the fullest part; for the waist, the narrowest part of the torso; for hips, around 20 cm (about 8 inches) below the waist.
2. Write the numbers in both units. One inch is 2.54 centimeters. Multiply inches by 2.54 for cm, divide cm by 2.54 for inches.
3. Measure a favorite garment too. Lay your best-fitting hoodie or tee flat. Measure chest across (armpit to armpit) and double it, then measure back length from collar seam to hem. That’s your personal benchmark.
4. Compare to the brand’s chart, not to a generic one. Our short guide on reading size charts shows what to look for, and the five-step true to size breakdown shows how to turn a chart into a decision.
5. Pick by the measurements you want, then confirm the label. If your chest is 40 inches and you want a loose fit, look for a garment chest several inches wider, not a bigger letter.

If you want a visual reference, the measure and convert overview diagram lays the process out in one picture, and the international T-shirt size comparison puts the common labels side by side.

Why the same size fits differently across brands

There is no international standards body regulating clothing sizing the way there is for length or weight. Decades of vanity sizing mean a size 8 today doesn’t mean what it did twenty years ago, or what it means at every brand. And most online conversion charts are copied from a single retailer and passed off as universal. Every chart is a compiled approximation.

Fit matters in money terms too. One estimate puts more than 30% of online returns down to incorrect fit. For a limited drop, a return isn’t a restock. The piece is gone.

Brand-to-brand differences also shape how you should think about size beyond the charts. If you want more on choosing sizes when a garment’s cut, closures or your own body make standard charts unreliable, this adaptive clothing sizing guide breaks down how to approach fit when labels don’t tell the full story.

A practical rule: pick your size from measurements, treat the conversion as a cross-check, and when a brand says its pieces run oversized or fitted, believe the garment dimensions over the label.

Quick conversion cheat sheet

Save this, then cross-check with a tape measure before you hit checkout.

Shop HRDLF with your numbers ready

Once you know your chest, length and preferred fit, ordering gets easy. HRDLF makes limited drop streetwear: hoodies, tees, hats and bags, from an independent Philadelphia brand that has been rooted in skate culture since 2006. Our limited runs are never restocked, so the time to get your size right is before the drop, not after.

Browse the current pieces at HRDLF Premium Streetwear, and see what to have ready before you start shopping for streetwear online so your tape measure and numbers are in hand when a drop goes live.

Want to hear about drops before they land? The Inner Circle is where we bring our community in first.

Perspective

We started HRDLF in Philadelphia in 2006, in skate culture, where fit is functional. You need to move, bend and land. A label that says M tells you nothing about whether you can do that.

That’s why we tell people to trust their own measurements. Convert if you have to, but use the numbers as a cross-check. A tape measure and your favorite hoodie laid flat tell you more than any international chart.

Our runs are limited and they aren’t restocked. ONCE IT’S GONE IT’S GONE. ALWAYS. So we want you ordering with confidence, not guessing between a 48 and a 50. We’re independent, with no outside investors, and we care about premium garment quality and being open about materials. A piece you can’t wear isn’t a piece we want on your shelf.

Nothing awesome comes easy. Measuring takes two minutes, and it’s worth it.

Brooks

FAQ

What is a US size 8 in EU sizes?

In women’s clothing, a US 8 is most commonly an EU 40, which is also a UK 12. France and Italy often print higher numbers for the same garment, about 42 and 44. Check the brand’s own chart if you can.

Is it US size plus 30 or plus 32 for the EU?

Both appear. Some charts add 30 for German, Dutch, Austrian and Scandinavian labels and 32 for French, Spanish and Belgian ones, while many calculators use a flat 32. The gap exists because there are two conventions that differ by one size. Measurements settle it.

How do I convert US men’s sizes to EU?

For jackets and suit-style tops, add 10 to the chest in inches, so a US 40 is an EU 50. For trousers, add 16 to the waist in inches, so a W32 is an EU 48. For hoodies and tees in S to XXL, compare chest and length measurements instead, since letter sizes aren’t standardized.

Are US and UK sizes the same?

For men’s clothing they’re very similar, with chest in inches on both sides. For women’s numeric sizes the UK is four above the US, so a US 8 is a UK 12.

Sources

• Joint European standard for size labelling of clothes (EN 13402)
• ASTM D5585 Standard Table of Body Measurements for Adult Female Misses
• International Dress Size Chart
• Clothing Size Chart: US, UK, EU and Japan Conversions
• Clothing Size Calculator and Converter (US/UK/EU)
• US to UK Dresses Clothing Size Chart
• UK vs USA vs European Clothing Sizes: The Ultimate Guide
• Clothing Size Converter: US, UK, EU, JP, KR, IT, FR, AU
• Clothing and Shoe Size Converter
• Designer Size Guide
• Adaptive Clothing Sizing: A Recovery-Focused Fit Guide

Recommended

• 20 Inch Benchmark: A Streetwear T Shirt Size Guide That Cuts Returns
• Avoid Fit Fails on Limited Drops: Measure Unisex Streetwear Right
• Measure First: True to Size Meaning for Online Shoppers (5 Steps)
• Avoid Returns on Limited Drops: Read Size Charts First

FROM THE COLLECTION

HRDLF Nordic Fjord Camo Tote Bag

$52

Limited run. No restocks.

— available at hrdlf.com