👙 Bra Size
30DDD Bra Size — UK, EU & French Conversion
A US 30DDD bra in UK, European and French sizing, with its sister sizes. Not sure 30DDD is right? Measure with the bra calculator first.
US 30DDD = UK 30E
EU 65F · French 80F
A US 30DDD bra converts to UK 30E, EU 65F and French 80F. The band number maps on a fixed scale, while cup letters shift between systems above D.
| Region | Size |
|---|---|
| US | 30DDD |
| UK | 30E |
| EU (Europe) | 65F |
| FR / ES (France, Spain) | 80F |
Sister sizes for 30DDD
Same cup volume, different band — try these if the band feels tight or loose but the cup is right:
28GSister down
32DDSister up
⚠️ US cup lettering above D varies by brand (DD vs E, DDD vs F). Match by the EU/UK equivalent when a brand's letters differ.
All bra sizes → · Bra calculator → · Converter →
What is a US 30DDD bra in UK and EU sizing?
A US 30DDD is a UK 30E, EU 65F and French 80F.
What are the sister sizes of 30DDD?
Same cup volume, different band: 28G, 32DD.
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