How does One Empire bra sizing run?
One Empire is labelled in AU sizing. Bold Australian lingerie. Below is how a One Empire size translates across all eight regional standards, plus sister sizes and where to buy.
One Empire size range & system
One Empire sizes in AU.
One Empire size conversion chart
Each row is one One Empire cup size read across the eight standards. The AU column (highlighted) is how One Empire labels its bras.
| US | UK | EU | FR | IT | AU | JP | IN |
|---|---|---|---|---|---|---|---|
| A | A | A | A | A | A | A | A |
| B | B | B | B | B | B | B | B |
| C | C | C | C | C | C | C | C |
| D | D | D | D | D | D | D | D |
| DD | DD | E | E | E | DD | E | DD |
| DDD | E | F | F | F | E | F | E |
Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.
Common One Empire sizes
Open the full eight-standard conversion for a specific size:
Sister sizes in One Empire
If a One Empire bra fits in the cup but the band is off, your sister size keeps the same cup volume with a different band — go down a band and up a cup, or up a band and down a cup. Example: a 34D and a 32DD hold the same cup volume.
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One Empire sizing FAQ
- Does One Empire run true to size?
- AU sizing. Sexy styles. Bold Australian lingerie.
- What sizing system does One Empire use?
- One Empire is labelled in AU sizing. Use the conversion table above to read your size across US, UK, EU, FR, IT, AU, JP and IN.
- What is a 34D in One Empire in EU sizing?
- A US 34D converts to EU 75D. Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.