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Jump directly to the sizing system you need. Every section includes conversion tables, explanations, and practical shopping tips for that country.
Worldwide Conversion
International Bra Size Conversion Chart
The table below compares the most common bra sizing systems used around the world. Use it when purchasing bras from international brands or shopping from overseas retailers.
| US | UK | EU | France | Italy | Australia | Japan |
|---|---|---|---|---|---|---|
| 30A | 30A | 65A | 80A | 0A | 8A | 65A |
| 30B | 30B | 65B | 80B | 0B | 8B | 65B |
| 30C | 30C | 65C | 80C | 0C | 8C | 65C |
| 32A | 32A | 70A | 85A | 1A | 10A | 70A |
| 32B | 32B | 70B | 85B | 1B | 10B | 70B |
| 32C | 32C | 70C | 85C | 1C | 10C | 70C |
| 34A | 34A | 75A | 90A | 2A | 12A | 75A |
| 34B | 34B | 75B | 90B | 2B | 12B | 75B |
| 34C | 34C | 75C | 90C | 2C | 12C | 75C |
| 36B | 36B | 80B | 95B | 3B | 14B | 80B |
| 36C | 36C | 80C | 95C | 3C | 14C | 80C |
| 38C | 38C | 85C | 100C | 4C | 16C | 85C |
| 40D | 40D | 90D | 105D | 5D | 18D | 90D |
| 42DD | 42DD | 95E | 110E | 6E | 20DD | 95E |
| 44F | 44F | 100G | 115G | 7G | 22F | 100G |
Understanding International Sizing
Why Bra Sizes Change Between Countries
Band Measurements
Countries use different numbering systems for band sizes. The United States and the United Kingdom use inch-based band numbers such as 32, 34, and 36, while most European countries use centimeter-based sizes such as 70, 75, and 80.
Cup Letters
Cup lettering isn't standardized worldwide. After DD, UK sizing introduces additional double-letter cups like FF and GG, while many European brands continue using a different progression.
Brand Differences
Even within the same country, brands may fit slightly differently. Always check the manufacturer's size guide before purchasing.
Body Shape Matters
Two women wearing the same labeled bra size may need different styles depending on breast shape, projection, fullness, and root width.
Countries Covered
Bra Sizing Systems Around the World
🇺🇸 United States
Uses inch-based band sizes with cup letters progressing from AA through K and beyond depending on the manufacturer.
🇬🇧 United Kingdom
Similar band sizing to the US but includes double-letter cup sizes such as DD, FF, GG, and HH.
🇪🇺 Europe
Most European countries use centimeter-based bands such as 65, 70, 75, 80, and 85.
🇫🇷 France
French sizing generally adds 15 to the European band number while maintaining similar cup progression.
🇮🇹 Italy
Italy commonly uses numeric band values such as 1, 2, 3, 4, and 5 instead of 32, 34, or 36.
🇦🇺 Australia
Australian sizing uses numbers like 8, 10, 12, 14, 16, and 18, with cup progression similar to UK brands.
🇯🇵 Japan
Japanese bras typically use centimeter band measurements and locally adapted cup sizing.
🇰🇷 South Korea
South Korea generally follows metric sizing with some brand-specific differences in cup grading.
🇨🇳 China
Chinese brands commonly use metric sizing similar to Europe but may vary between manufacturers.
🇮🇳 India
Many Indian brands follow UK sizing, although international brands may also use US or European systems.
Country Guides
Understanding Bra Sizes Around the World
Although bra sizing serves the same purpose worldwide, each country has developed its own numbering and lettering system. Learning these differences helps you shop internationally with confidence and reduces the chances of ordering the wrong size.
United States
US Bra Size System
Band Sizes
American brands typically use even-numbered bands including 30, 32, 34, 36, 38, 40, 42, 44, 46 and 48.
Cup Sizes
Common cup sizes include AA, A, B, C, D, DD, DDD/F, G, H, I, J and K depending on the manufacturer.
Popular Brands
Victoria's Secret, Wacoal, Bali, Warner's, Maidenform, ThirdLove and many department-store brands primarily use US sizing.
United Kingdom
UK Bra Size System
Band Sizes
The UK uses the same band numbers as the US, making band conversion straightforward.
Cup Letters
Unlike the US, the UK continues with double-letter cups such as DD, E, F, FF, G, GG, H and HH.
Shopping Tip
When buying from UK brands, always check the cup lettering because this is where most conversion mistakes occur.
Europe
European Bra Size System
Metric Band Sizes
European sizing is based on centimeters and commonly includes 65, 70, 75, 80, 85, 90, 95, 100 and beyond.
Countries
Germany, Austria, Netherlands, Belgium and several other European countries generally follow the EU sizing standard.
Best For
Most European lingerie brands display both EU and international conversions on their labels.
France
French Bra Sizes
French sizing uses larger band numbers than standard European sizing. For example, an EU 70 band generally corresponds to a French 85 band.
| EU | France |
|---|---|
| 65 | 80 |
| 70 | 85 |
| 75 | 90 |
| 80 | 95 |
| 85 | 100 |
| 90 | 105 |
| 95 | 110 |
Italy
Italian Bra Sizes
Italian sizing replaces band numbers with numeric values, making conversion different from most other countries.
| Italy | US / UK |
|---|---|
| 1 | 32 |
| 2 | 34 |
| 3 | 36 |
| 4 | 38 |
| 5 | 40 |
| 6 | 42 |
Australia & New Zealand
Australian Bra Sizes
Band Sizes
Australian sizing typically uses 8, 10, 12, 14, 16, 18, 20 and higher.
Cup Progression
Most Australian brands closely follow UK cup lettering.
Conversion
US 32 generally equals AU 10, while US 34 generally equals AU 12.
Asia
Japan, Korea and China
Japan
Japanese brands commonly use centimeter-based bands combined with locally standardized cup sizes.
South Korea
Korean manufacturers generally use metric sizing and often provide international conversion labels.
China
Chinese brands frequently follow European-style metric bands, although sizing can vary between manufacturers.
Shopping Advice
Tips Before Buying an International Bra
Measure Yourself First
Always start with accurate underbust and bust measurements before converting sizes.
Convert Your Size
Use the conversion table above to find your equivalent size in the destination country's sizing system.
Check Brand Guides
Many manufacturers publish their own fit recommendations because sizing can vary slightly between brands.
Read Reviews
Customer reviews often reveal whether a particular bra runs small, large or true to size.
Frequently Asked Questions
International Bra Size FAQs
Different countries developed their own measurement standards and labeling systems. While many use similar fitting principles, the band numbers and cup letters can vary significantly.
Band numbers are generally the same, but cup letters differ after DD. UK sizing includes FF, GG, HH and other double-letter cups that are not always used in US sizing.
A US 34C generally converts to approximately EU 75C, although individual brands may vary slightly.
A UK 32DD is commonly equivalent to approximately a French 85E, depending on the manufacturer's sizing system.
No. Even brands from the same country may have slightly different sizing and fit characteristics.
Your most recent measurements provide the best starting point. Body shape, weight changes, and different brands can affect your ideal fit.
Many continental European countries including Germany, Austria, Belgium, the Netherlands, and several neighboring countries commonly use EU sizing.
Yes. Australian sizing uses different band numbers but generally follows the UK cup progression.
Japan primarily uses metric band measurements and its own standardized size labels. Many brands also display international conversions.
Yes. Two people with identical measurements may prefer different styles depending on breast shape, projection, fullness, and tissue distribution.
Yes. Sister sizing helps when your exact size is unavailable by keeping the cup volume similar while changing the band size.
Yes. This chart provides a reliable starting point, but checking the retailer's own size guide is always recommended before purchasing.
Explore More
Related Bra Size Resources
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