👙 Bra Size
34K Bra Size — UK, EU & French Conversion
A US 34K bra in UK, European and French sizing, with its sister sizes. Not sure 34K is right? Measure with the bra calculator first.
US 34K = UK 34H
EU 75K · French 90K
A US 34K bra converts to UK 34H, EU 75K and French 90K. The band number maps on a fixed scale, while cup letters shift between systems above D.
| Region | Size |
|---|---|
| US | 34K |
| UK | 34H |
| EU (Europe) | 75K |
| FR / ES (France, Spain) | 90K |
Sister sizes for 34K
Same cup volume, different band — try these if the band feels tight or loose but the cup is right:
36JSister 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 34K bra in UK and EU sizing?
A US 34K is a UK 34H, EU 75K and French 90K.
What are the sister sizes of 34K?
Same cup volume, different band: 36J.
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