👙 Bra Size
30K Bra Size — UK, EU & French Conversion
A US 30K bra in UK, European and French sizing, with its sister sizes. Not sure 30K is right? Measure with the bra calculator first.
US 30K = UK 30H
EU 65K · French 80K
A US 30K bra converts to UK 30H, EU 65K and French 80K. The band number maps on a fixed scale, while cup letters shift between systems above D.
| Region | Size |
|---|---|
| US | 30K |
| UK | 30H |
| EU (Europe) | 65K |
| FR / ES (France, Spain) | 80K |
Sister sizes for 30K
Same cup volume, different band — try these if the band feels tight or loose but the cup is right:
32JSister 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 30K bra in UK and EU sizing?
A US 30K is a UK 30H, EU 65K and French 80K.
What are the sister sizes of 30K?
Same cup volume, different band: 32J.
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