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46DD Bra Size — UK, EU & French Conversion

A US 46DD bra in UK, European and French sizing, with its sister sizes. Not sure 46DD is right? Measure with the bra calculator first.

Reviewed by the 247Sizing teamLast updated: 27 August 2026
US 46DD = UK 46DD
EU 105E · French 120E

A US 46DD bra converts to UK 46DD, EU 105E and French 120E. The band number maps on a fixed scale, while cup letters shift between systems above D.

RegionSize
US46DD
UK46DD
EU (Europe)105E
FR / ES (France, Spain)120E

Sister sizes for 46DD

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

44DDDSister down
48DSister 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.

44DD · 48DD · 46D · 46DDD

All bra sizes → · Bra calculator → · Converter →

What is a US 46DD bra in UK and EU sizing?

A US 46DD is a UK 46DD, EU 105E and French 120E.

What are the sister sizes of 46DD?

Same cup volume, different band: 44DDD, 48D.

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