Australian to US bra size converter
Australian bands look like dress sizes such as 10, 12 and 14; this tool turns them into inch and cm bands.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter australian band and australian cup.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Band: US and UK 32 = EU 70 = FR 85 = IT 1 = AU 10, and each step adds 2 in (US, UK), 5 cm (EU, FR), 1 (IT) or 2 (AU). Cup: letters are matched by position. UK: AA A B C D DD E F FF G, US: AA A B C D DD DDD G H I, EU, FR and IT: AA A B C D E F G H I.
Example
Inputs: Australian band = 12, Australian cup = DD. Result: US size: 34DD; UK size: 34DD; EU size: 75E.
Limits and caveats
- The Australian band here equals the US band minus 22, so 10 matches 32.
- Australian cup letters past F vary by brand, so the choice stops at F.
Questions about this tool
What is AU 12DD in US sizes?
It is a US 34DD and an EU 75E.
Are Australian cup letters like UK ones?
Yes, at least up to F, including DD.
Does this apply to New Zealand?
Yes. New Zealand uses the same band numbers as Australia.