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46A Bra Size — UK, EU & French Conversion

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

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

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

RegionSize
US46A
UK46A
EU (Europe)105A
FR / ES (France, Spain)120A

Sister sizes for 46A

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

44BSister down
48AASister 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.

44A · 48A · 46AA · 46B

All bra sizes → · Bra calculator → · Converter →

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

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

What are the sister sizes of 46A?

Same cup volume, different band: 44B, 48AA.

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