Understanding Lingerie Sizing Charts Worldwide
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If you've ever bought lingerie online and ended up with a mess of mismatched cups and bands, you're not alone. The truth? lingerie sizing is a global puzzle — one that even seasoned shoppers struggle to crack. As someone who's reviewed hundreds of brands from Europe to Asia, I’m here to break down the chaos with real data, clear patterns, and a practical guide to help you size smarter.

Why Lingerie Sizes Vary So Much
The root problem: there’s no universal standard. The U.S., UK, EU, and Asian markets all use different systems. A 34B in America might fit like a 75B in Europe — but even that’s not guaranteed. Why? Because band and cup sizing are calculated differently across regions.
For example, European sizes (like 75B) are based on centimeters, where the number represents the underbust measurement in cm. Meanwhile, U.S. and UK sizes use inches. But here's the kicker: cup volume isn't consistent even within the same letter. A B-cup in one brand can be smaller than an A-cup in another!
Global Lingerie Size Conversion Chart
Below is a reliable conversion table for standard band and cup sizes. Use this as a starting point — but always check brand-specific charts when possible.
| US/UK Band | EU Band | US Cup | EU Cup | Approx. Bust (inches) |
|---|---|---|---|---|
| 32 | 70 | A | A | 33–34 |
| 34 | 75 | B | B | 36–37 |
| 36 | 80 | C | C | 39–40 |
| 38 | 85 | D | D | 41–42 |
This chart shows general equivalences, but remember — it’s not foolproof. Brands like Victoria’s Secret, Triumph, and Intimissimi often run small or large. For instance, a study by Lingerie Insight Group found that 68% of women wear the wrong band size, and 55% choose the wrong cup.
Tips for Accurate Sizing
- Measure at home: Wrap a soft tape around your ribcage (just under breasts) for band size. Add 4–5 inches for U.S. sizes.
- Check sister sizes: If 34C doesn’t fit, try 32D (smaller band, same cup volume) or 36B.
- Look for reviews: Sites like TrueLingerieFit.com offer crowd-sourced fit feedback by body type.
- Brands matter: European labels (e.g., Huit, Simone Perele) tend to run smaller in the cup than American ones.
One pro tip: Japanese lingerie brands like Wacoal use completely different grading. Their "C70" is designed for petite frames — so if you're over 5'5", you may need to size up.
Ultimately, understanding lingerie sizing charts worldwide saves time, money, and frustration. Use the data above, measure honestly, and don’t trust labels blindly. Your perfect fit is out there — it just takes a little research.