👙 Bra Size
42B Bra Size — UK, EU & French Conversion
A US 42B bra in UK, European and French sizing, with its sister sizes. Not sure 42B is right? Measure with the bra calculator first.
US 42B = UK 42B
EU 95B · French 110B
A US 42B bra converts to UK 42B, EU 95B and French 110B. The band number maps on a fixed scale, while cup letters shift between systems above D.
| Region | Size |
|---|---|
| US | 42B |
| UK | 42B |
| EU (Europe) | 95B |
| FR / ES (France, Spain) | 110B |
Sister sizes for 42B
Same cup volume, different band — try these if the band feels tight or loose but the cup is right:
40CSister down
44ASister 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 42B bra in UK and EU sizing?
A US 42B is a UK 42B, EU 95B and French 110B.
What are the sister sizes of 42B?
Same cup volume, different band: 40C, 44A.
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