Australian Bra Size to US Conversion Guide

Translate Australian 6–32 bands back into US inch labels and restore US cup lettering. Use the chart, steps, and retailer notes to shop in the States without losing your fit.

View the conversion chartCheck sister sizes

Covers Australian bands 6–32 and US bands 28–52 with cups A through K.

Swap 6–32 for even US bands

AU 8 converts to US 30, AU 10 to US 32, AU 12 to US 34, and so on.

Re-map double letters

Australian cups mirror UK letters, so you may need to rename FF or GG when switching to US notation.

Check the site’s default

Some global retailers display US sizes by default—use the chart to supply the correct band and cup when ordering.

AU to US band and cup mapping

Follow your Australian size across to identify the US band and cup letter.

AU labelUS labelNotes
6A28AAustralian 6A equals US 28A after converting the band and aligning cup names.
6B28BAustralian 6B equals US 28B after converting the band and aligning cup names.
6C28CAustralian 6C equals US 28C after converting the band and aligning cup names.
6D28DAustralian 6D equals US 28D after converting the band and aligning cup names.
6DD28DDAustralian 6DD equals US 28DD after converting the band and aligning cup names.
6E28EAustralian 6E equals US 28E after converting the band and aligning cup names.
6F28FAustralian 6F equals US 28F after converting the band and aligning cup names.
6G28GAustralian 6G equals US 28G after converting the band and aligning cup names.
8A30AAustralian 8A equals US 30A after converting the band and aligning cup names.
8B30BAustralian 8B equals US 30B after converting the band and aligning cup names.
8C30CAustralian 8C equals US 30C after converting the band and aligning cup names.
8D30DAustralian 8D equals US 30D after converting the band and aligning cup names.
8DD30DDAustralian 8DD equals US 30DD after converting the band and aligning cup names.
8E30EAustralian 8E equals US 30E after converting the band and aligning cup names.
8F30FAustralian 8F equals US 30F after converting the band and aligning cup names.
8G30GAustralian 8G equals US 30G after converting the band and aligning cup names.
10A32AAustralian 10A equals US 32A after converting the band and aligning cup names.
10B32BAustralian 10B equals US 32B after converting the band and aligning cup names.
10C32CAustralian 10C equals US 32C after converting the band and aligning cup names.
10D32DAustralian 10D equals US 32D after converting the band and aligning cup names.
10DD32DDAustralian 10DD equals US 32DD after converting the band and aligning cup names.
10E32EAustralian 10E equals US 32E after converting the band and aligning cup names.
10F32FAustralian 10F equals US 32F after converting the band and aligning cup names.
10G32GAustralian 10G equals US 32G after converting the band and aligning cup names.

Convert your size in four steps

  1. Start from your AU size Measure underbust in centimetres with the AU chart in mind or begin with a bra that fits in Australian sizing.
  2. Swap to the US band Use the chart to translate the 6–32 band into the closest US even number.
  3. Lean on sister sizes If the US band feels off, move one band up or down and adjust the cup to maintain volume.
  4. Double-check underwires and fabrics US brands may use different wires or stretch—try nearby sizes before removing tags.

Worked conversion examples

AU 8DD -> US 30DD

AU 8DD becomes US 30DD—only the band label changes.

AU 10F -> US 32F

AU 10F converts to US 32F, ideal for ordering from US retailers.

AU 12DD -> US 34DD

AU 12DD maps to US 34DD without altering cup depth.

AU 14F -> US 36F

AU 14F translates to US 36F, making overseas shopping straightforward.

Brand sizing cheat sheet

Use these references to move smoothly between Australian and US store shelves.

Australian retailers

  • THE ICONIC
  • City Chic
  • Bras N Things
  • Myer

THE ICONIC, City Chic, Bras N Things, and Myer list AU sizes first—convert to US if you’re shipping stateside.

US-focused brands

  • ThirdLove
  • Soma
  • Cacique
  • Bare Necessities

ThirdLove, Soma, and Bare Necessities display US sizes by default—supply the converted size at checkout.

Global marketplaces

  • Amazon US
  • HerRoom
  • Figleaves
  • Nordstrom

Amazon, HerRoom, and Nordstrom offer international shipping and show both AU and US equivalents.

Fit tips after converting

  • US bands use even numbers—keep your AU-to-US table close when troubleshooting size charts.
  • Some US styles skip GG/HH letters—use the chart to identify the next closest US cup.
  • Record your AU origin size alongside the converted US size for future orders.

Helpful tools

Interactive bra size calculator

Measure in inches or centimetres and generate both local and international sizes in one place.

Open

International bra size guide

Compare regional systems side by side and review conversion advice for cross-border shopping.

Open

Sister size navigator

Adjust bands tighter or looser while holding cup volume steady after you convert.

Open

AU to US conversion FAQ

How do I convert an AU band to a US band?

Use the chart to swap AU 8, 10, 12, etc. to the nearest US even number such as 30, 32, 34.

What should I do with AU double letters?

US charts sometimes rename FF as H or DDD/F. Check the conversion table to see the exact cup letter.

Is the fit identical after converting?

It should be similar. If you want more or less tension, move to a neighbouring US band and compensate with a sister size cup.

Which US retailers carry AU-friendly sizing?

Specialty stores like Bare Necessities, HerRoom, and Nordstrom carry extended cups that match AU conversions.