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