👙 Bra Size
42A Bra Size — UK, EU & French Conversion
A US 42A bra in UK, European and French sizing, with its sister sizes. Not sure 42A is right? Measure with the bra calculator first.
US 42A = UK 42A
EU 95A · French 110A
A US 42A bra converts to UK 42A, EU 95A and French 110A. The band number maps on a fixed scale, while cup letters shift between systems above D.
| Region | Size |
|---|---|
| US | 42A |
| UK | 42A |
| EU (Europe) | 95A |
| FR / ES (France, Spain) | 110A |
Sister sizes for 42A
Same cup volume, different band — try these if the band feels tight or loose but the cup is right:
40BSister down
44AASister 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 42A bra in UK and EU sizing?
A US 42A is a UK 42A, EU 95A and French 110A.
What are the sister sizes of 42A?
Same cup volume, different band: 40B, 44AA.
ⓘ Affiliate links below. As an Amazon Associate we earn from qualifying purchases at no extra cost to you.
★ Top pick · Recommended on Amazon
Bras (Multipack)
Everyday bras once you know your size.
View on Amazon →Recommended on Amazon
Bra Band Extenders
Adjust the band a touch without changing the cup.
View on Amazon →