👙 Bra Size
34DD Bra Size — UK, EU & French Conversion
A US 34DD bra in UK, European and French sizing, with its sister sizes. Not sure 34DD is right? Measure with the bra calculator first.
US 34DD = UK 34DD
EU 75E · French 90E
A US 34DD bra converts to UK 34DD, EU 75E and French 90E. The band number maps on a fixed scale, while cup letters shift between systems above D.
| Region | Size |
|---|---|
| US | 34DD |
| UK | 34DD |
| EU (Europe) | 75E |
| FR / ES (France, Spain) | 90E |
Sister sizes for 34DD
Same cup volume, different band — try these if the band feels tight or loose but the cup is right:
32DDDSister down
36DSister 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 34DD bra in UK and EU sizing?
A US 34DD is a UK 34DD, EU 75E and French 90E.
What are the sister sizes of 34DD?
Same cup volume, different band: 32DDD, 36D.
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