Bra Size Converter
Convert a bra size between US, UK, European and French or Australian labelling. The band number changes because the US and UK measure in inches while Europe and Australia use centimeter bands like 65, 70 and 75, and the cup letters diverge once you pass a D: a US DD is a UK DD but a European E, and the ladder keeps shifting from there. Enter your US band and cup, and this tool prints the equivalent label in each region using standard published conversion charts. Cup letter systems are not perfectly standardized between brands, so if a converted size feels off try the neighboring cup. Use it to shop confidently from European or British retailers without second guessing the numbers. All conversions happen in your browser with nothing uploaded, and the results refresh instantly when you change the band or cup.
How to use Bra Size Converter
- Select the sizing system you know.
- Enter your band and cup.
- Read the matching size in US, UK, EU, and French or AU.
- Use it to shop from international retailers.
Frequently asked questions
Which systems does it convert between?
It converts a band and cup between US, UK, EU, and French or AU sizing, showing the matching label in every regional system.
Why does the cup letter change between regions?
Different countries assign cup letters at different steps, so a US cup can carry a different letter in the UK or EU. The tool aligns them by the underlying measurement.
Do band numbers change too?
Yes, EU and French bands use centimeter based numbers while US and UK use inch based numbers, so the band figure is converted along with the cup.
What is Bra Size Converter?
Convert a bra size between US, UK, European and French or Australian labelling. The band number changes because the US and UK measure in inches while Europe and Australia use centimeter bands like 65, 70 and 75, and the cup letters diverge once you pass a D: a US DD is a UK DD but a European E, and the ladder keeps shifting from there.
Is Bra Size Converter free to use?
Yes. Bra Size Converter is completely free, with no sign-up and no usage limits.
Does Bra Size Converter work in a web browser?
Yes. Bra Size Converter runs in any modern web browser. There is nothing to download or install.
Is my data private with Bra Size Converter?
Yes. Bra Size Converter runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
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Link this tool from a README, doc or site. The badge links back to this page.
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