Free Converter
Convert Your Bra Size Worldwide
Select your current country, choose your bra size, then select the country you want to convert to. The converter will instantly display the closest equivalent size.
Conversion Result
Your Converted Bra Size
This conversion is based on commonly accepted international sizing standards. Individual brands may vary slightly.
Supported Countries
Convert Between Popular Bra Size Systems
Worldwide Conversion Tables
International Bra Size Conversion Chart
Use the following tables to compare equivalent bra sizes across the world's most commonly used sizing systems. These conversions are intended as a general guide. Individual brands may fit slightly differently.
| 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 |
| 32D | 32D | 70D | 85D | 1D | 10D | 70D |
| 34A | 34A | 75A | 90A | 2A | 12A | 75A |
| 34B | 34B | 75B | 90B | 2B | 12B | 75B |
| 34C | 34C | 75C | 90C | 2C | 12C | 75C |
| 34D | 34D | 75D | 90D | 2D | 12D | 75D |
| 36B | 36B | 80B | 95B | 3B | 14B | 80B |
| 36C | 36C | 80C | 95C | 3C | 14C | 80C |
| 36D | 36D | 80D | 95D | 3D | 14D | 80D |
| 38C | 38C | 85C | 100C | 4C | 16C | 85C |
| 38D | 38D | 85D | 100D | 4D | 16D | 85D |
| 40D | 40D | 90D | 105D | 5D | 18D | 90D |
| 42DD | 42DD | 95E | 110E | 6E | 20DD | 95E |
| 44F | 44F | 100G | 115G | 7G | 22F | 100G |
Popular Conversions
Common International Bra Size Conversions
US → UK
US and UK band sizes are usually the same, but cup lettering changes after DD. For example, a US DDD is often equivalent to a UK E cup.
US → Europe
European sizing uses centimeter-based band numbers such as 65, 70, 75, 80, and 85 instead of 30, 32, 34, and 36.
US → France
French band sizes are generally 15 higher than European band numbers while maintaining similar cup progression.
US → Italy
Italy uses numeric band sizes such as 1, 2, 3, 4, and 5 instead of inch-based band measurements.
US → Australia
Australian bands are numbered 8, 10, 12, 14, 16 and usually follow UK-style cup lettering.
US → Japan
Japan primarily uses metric band sizes and localized sizing labels while many international brands also display global conversions.
Example Conversions
How Bra Size Conversion Works
Example 1
A woman wearing a US 34C would typically wear:
- 🇬🇧 UK: 34C
- 🇪🇺 EU: 75C
- 🇫🇷 France: 90C
- 🇮🇹 Italy: 2C
- 🇦🇺 Australia: 12C
- 🇯🇵 Japan: 75C
Example 2
A person wearing US 32D would generally convert to:
- 🇬🇧 UK: 32D
- 🇪🇺 EU: 70D
- 🇫🇷 France: 85D
- 🇮🇹 Italy: 1D
- 🇦🇺 Australia: 10D
- 🇯🇵 Japan: 70D
Example 3
A person wearing US 38D would typically convert to:
- 🇬🇧 UK: 38D
- 🇪🇺 EU: 85D
- 🇫🇷 France: 100D
- 🇮🇹 Italy: 4D
- 🇦🇺 Australia: 16D
- 🇯🇵 Japan: 85D
Quick Tips
Before Using a Bra Size Converter
Measure Yourself Recently
Use current bust and underbust measurements for the most accurate conversion.
Know Your Brand
Some manufacturers adjust sizing slightly, so always compare with the brand's official size chart.
Cup Letters May Change
UK, US, and European cup lettering differs after DD, making proper conversion important.
Try Sister Sizes
If your converted size isn't available, a sister size may provide a similar cup volume with a different band size.
Understanding International Bra Sizes
How the International Bra Size Converter Works
Bra sizing isn't standardized worldwide. While the basic principle remains the same—combining a band size with a cup size—different countries use different numbering systems and cup lettering. Our International Bra Size Converter compares these systems to help you find the closest equivalent size when shopping internationally.
Select Your Current Country
Choose the country whose sizing system your current bra uses, such as the United States, United Kingdom, Europe, Australia, France, Italy, Japan, or India.
Choose Your Current Size
Select your existing bra size. The converter uses both the band size and cup size to calculate equivalent international sizes.
Choose the Destination Country
Select the country where you plan to purchase your next bra. The converter will calculate the closest matching size.
Review the Results
Use the converted size as your starting point, then compare it with the brand's official size chart for the most accurate fit.
Country Guides
Bra Sizing Systems by Country
🇺🇸 United States
US sizing uses even-numbered band sizes such as 30, 32, 34, and 36 with cup letters including A, B, C, D, DD, DDD/F, G, H, I, J, and K.
🇬🇧 United Kingdom
UK sizing shares the same band numbers as the US but uses double-letter cup sizes such as DD, FF, GG, HH, and JJ.
🇪🇺 Europe
European sizing uses centimeter-based bands including 65, 70, 75, 80, 85, 90, and beyond.
🇫🇷 France
French sizing generally uses larger band numbers than standard European sizing while maintaining similar cup progression.
🇮🇹 Italy
Italy uses numerical band sizes such as 1, 2, 3, 4, 5, and 6 rather than inch-based measurements.
🇦🇺 Australia & New Zealand
Australian sizing uses band sizes such as 8, 10, 12, 14, 16, and 18 while generally following UK cup lettering.
🇯🇵 Japan
Japanese brands use metric band measurements and often display both Japanese and international sizing.
🇮🇳 India
Many Indian lingerie brands follow UK sizing, although some international brands use US or European systems.
Common Conversion Mistakes
Avoid These Bra Size Conversion Errors
Ignoring Band Size
Many shoppers compare only cup letters. Always convert both the band and the cup because they work together.
Assuming All Brands Fit the Same
Different brands use different grading methods, so equivalent sizes may fit slightly differently.
Confusing UK and US Cups
Although both systems use similar band sizes, the cup progression changes after DD.
Using Old Measurements
Your bra size may change over time due to weight changes, pregnancy, aging, or hormonal changes.
Ignoring Sister Sizes
If your converted size isn't available, sister sizing can often provide a better alternative.
Skipping Brand Size Charts
Always compare your converted size with the manufacturer's official sizing guide before ordering.
Shopping Tips
Buying Bras from International Brands
Measure Yourself First
Use accurate bust and underbust measurements before converting your size.
Convert Your Size
Use the converter to determine the closest equivalent in the destination country's sizing system.
Compare Brand Charts
Every manufacturer may fit slightly differently, so always review the official size guide.
Read Customer Reviews
Reviews often indicate whether a particular bra runs small, large, or true to size.
Keep Sister Sizes in Mind
If your converted size isn't available, your nearest sister size may offer a better fit without significantly changing cup volume.
Helpful Resources
Explore More Bra Size Tools
Frequently Asked Questions
International Bra Size Converter FAQs
Our converter follows widely accepted international bra size conversion standards. Because brands use different patterns and grading systems, the converted size should be used as a starting point rather than an absolute guarantee.
Yes. The converter supports US and UK sizing, including the differences in cup lettering after DD.
Yes. You can convert between US, UK, EU, France, Italy, Australia, Japan, India and other supported sizing systems.
Different countries use different band measurements and cup lettering systems. Although the breast volume remains similar, the size label changes depending on the sizing standard.
Band numbers are generally the same, but UK sizing includes additional double-letter cup sizes such as FF, GG, HH and JJ.
Yes. Even when two brands use the same country sizing system, their fit may differ because of different manufacturing standards and bra designs.
Yes. Recent measurements provide the most accurate starting point for international conversion.
French sizing generally uses larger band numbers than standard European sizing while keeping similar cup progression.
Yes. If the sports bra uses standard bra sizing, the converter can help identify the closest equivalent size in another country.
Pregnancy can change both band and cup measurements. Measure yourself again before converting to another country's sizing.
Try your nearest sister size or consult the manufacturer's official sizing guide for additional recommendations.
Yes. It's designed to help shoppers compare international bra sizes before purchasing from overseas retailers.
Experts recommend measuring every 6 to 12 months or after significant weight changes, pregnancy, breastfeeding, or hormonal changes.
No. Cup size depends on the accompanying band size. A 32D has a smaller cup volume than a 38D.
The converter supports major international sizing systems including the US, UK, Europe, France, Italy, Australia, Japan and India.
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Whether you're shopping from an international lingerie brand or comparing sizing systems across countries, our free International Bra Size Converter makes it easy to find your closest equivalent size.