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46J Bra Size — UK, EU & French Conversion

A US 46J bra in UK, European and French sizing, with its sister sizes. Not sure 46J is right? Measure with the bra calculator first.

Reviewed by the 247Sizing teamLast updated: 27 August 2026
US 46J = UK 46GG
EU 105J · French 120J

A US 46J bra converts to UK 46GG, EU 105J and French 120J. The band number maps on a fixed scale, while cup letters shift between systems above D.

RegionSize
US46J
UK46GG
EU (Europe)105J
FR / ES (France, Spain)120J

Sister sizes for 46J

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

44KSister down
48ISister 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.

44J · 48J · 46I · 46K

All bra sizes → · Bra calculator → · Converter →

What is a US 46J bra in UK and EU sizing?

A US 46J is a UK 46GG, EU 105J and French 120J.

What are the sister sizes of 46J?

Same cup volume, different band: 44K, 48I.

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