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28DDD Bra Size — UK, EU & French Conversion

A US 28DDD bra in UK, European and French sizing, with its sister sizes. Not sure 28DDD is right? Measure with the bra calculator first.

Reviewed by the 247Sizing teamLast updated: 27 August 2026
US 28DDD = UK 28E
EU 60F · French 75F

A US 28DDD bra converts to UK 28E, EU 60F and French 75F. The band number maps on a fixed scale, while cup letters shift between systems above D.

RegionSize
US28DDD
UK28E
EU (Europe)60F
FR / ES (France, Spain)75F

Sister sizes for 28DDD

Same cup volume, different band — try these if the band feels tight or loose but the cup is right:

30DDSister 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.

30DDD · 28DD · 28G

All bra sizes → · Bra calculator → · Converter →

What is a US 28DDD bra in UK and EU sizing?

A US 28DDD is a UK 28E, EU 60F and French 75F.

What are the sister sizes of 28DDD?

Same cup volume, different band: 30DD.

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