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42H Bra Size — UK, EU & French Conversion

A US 42H bra in UK, European and French sizing, with its sister sizes. Not sure 42H is right? Measure with the bra calculator first.

Reviewed by the 247Sizing teamLast updated: 27 August 2026
US 42H = UK 42FF
EU 95H · French 110H

A US 42H bra converts to UK 42FF, EU 95H and French 110H. The band number maps on a fixed scale, while cup letters shift between systems above D.

RegionSize
US42H
UK42FF
EU (Europe)95H
FR / ES (France, Spain)110H

Sister sizes for 42H

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

40ISister down
44GSister 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.

40H · 44H · 42G · 42I

All bra sizes → · Bra calculator → · Converter →

What is a US 42H bra in UK and EU sizing?

A US 42H is a UK 42FF, EU 95H and French 110H.

What are the sister sizes of 42H?

Same cup volume, different band: 40I, 44G.

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