Cross into most of mainland Europe and the tape measure switches from inches to centimeters, and the band number jumps by roughly 15-18 points overnight. The EU band number is your underbust measurement in centimeters, rounded to the nearest 5 after adding about 16 — so a US/UK 34 lands around an EU 75-80.
Cross into most of mainland Europe and the tape measure switches from inches to centimeters, and the band number jumps by roughly 15-18 points overnight. The EU band number is your underbust measurement in centimeters, rounded to the nearest 5 after adding about 16 — so a US/UK 34 lands around an EU 75-80.
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How EU Sizing Actually Works
The EU band number is your underbust measurement in centimeters, rounded to the nearest 5 after adding about 16 — so a US/UK 34 lands around an EU 75-80.
Because so many European retailers ship internationally, it’s worth learning this conversion even if you never set foot in the region.
Convert Your Size
Use the calculator above to see your size across all 7 systems this site supports, EU included. If you already know your size in another system, enter it into the Global Bra Size Converter instead of doing the math by hand.
Getting an Accurate Starting Point
A conversion is only as good as the numbers going into it — How to Measure walks through the exact method used here, and the Sister Size Calculator can help if the result doesn’t feel like a perfect match.
A Worked Example for the EU (France/Spain/Belgium)
Say your underbust measures 30 inches and your bust measures 34 inches — a US 30DD. Converted to the EU (France/Spain/Belgium)’s system, that becomes roughly 90cm E using the formula above. Run your own numbers through the calculator on this page rather than eyeballing the conversion — small rounding differences near a size boundary can shift the result by a full cup letter.
Shopping Locally vs. Importing in the EU (France/Spain/Belgium)
Across France, Spain, and Belgium, department store fitting services are common and staff are often trained specifically on the cm-based system, which makes an in-person check worthwhile.
Common Sizing Mistakes Shoppers Make in the EU (France/Spain/Belgium)
A frequent error in the EU zone is rounding a band measurement to a “neat” number like 80 or 85cm instead of using the actual nearest-5 formula result.
Shoppers here also often forget that cup letters aren’t absolute — a D on an 80cm band is a very different actual volume than a D on a 95cm band.
A Note on Retail Fitting in the EU (France/Spain/Belgium)
Larger EU department stores often have dedicated lingerie fitting sections with staff trained specifically on the cm-based system used across the zone.
Shopping Across EU Borders
Because EU member countries share this sizing convention, ordering from a retailer in a different EU country than your own rarely creates a sizing headache — the band-and-cup labels stay consistent even when the language on the box changes.
One Label, Multiple National Markets
The EU band-in-centimeters convention is shared across many countries with very different retail cultures and clothing size norms, which is exactly why the same EU bra size label can feel associated with different “typical” body types depending on which specific country’s stores you’re used to.
Cross-Border EU Shopping Is Usually Reliable
Because the EU convention is genuinely shared (not just similar) across member countries, ordering from a French, Spanish, or Belgian retailer using your EU size is one of the more reliable cross-border shopping situations compared to converting between entirely different systems.
VAT and Pricing Can Vary by Member State
Even with shared sizing conventions, pricing and VAT rates differ by EU country — worth checking the final checkout price rather than assuming a listed price is final across every member state.
FAQ
It's measuring the same ribcage in centimeters instead of inches with a small padding offset — not a bigger size.
Most of Western Europe aligns closely, though Italy is a notable exception (see the Italy page).
Subtract roughly 15-16 from the EU band number to estimate the US/UK inch band, then match cup letters using the site's converter for accuracy.
A converter gets you close, but cut and construction still vary by brand — treat the converted number as your starting point for trying on, not a guarantee.
Yes — conversions get less reliable at the extremes of any scale, since brands often adjust proportions rather than just scaling a size up or down uniformly.
It can add cost and delivery time, and in some cases customs duties — factor this in especially for a size you're not fully confident about, since returns get more expensive across borders.
After — get your baseline size from the calculator, then check that exact product's own chart, since retailer-wide conversions are a starting point, not a guarantee for every individual style.
Most markets have at least some domestic labels alongside international brands, but sizing conventions typically follow whichever system that specific brand was designed under, not necessarily the country it's sold in.
No — the sizing conventions themselves are a long-standing industry practice, not an EU regulation, so they weren't affected by any trade or political changes.
