👙 Bra Size
38J Bra Size — UK, EU & French Conversion
A US 38J bra in UK, European and French sizing, with its sister sizes. Not sure 38J is right? Measure with the bra calculator first.
US 38J = UK 38GG
EU 85J · French 100J
A US 38J bra converts to UK 38GG, EU 85J and French 100J. The band number maps on a fixed scale, while cup letters shift between systems above D.
| Region | Size |
|---|---|
| US | 38J |
| UK | 38GG |
| EU (Europe) | 85J |
| FR / ES (France, Spain) | 100J |
Sister sizes for 38J
Same cup volume, different band — try these if the band feels tight or loose but the cup is right:
36KSister down
40ISister 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 38J bra in UK and EU sizing?
A US 38J is a UK 38GG, EU 85J and French 100J.
What are the sister sizes of 38J?
Same cup volume, different band: 36K, 40I.
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