44J bra size — conversion chart, sister sizes & brands
A 44J bra (US notation) in every regional standard. The same band-and-cup, labelled eight different ways.
| US | UK | EU | FR | IT | AU | JP | IN |
|---|---|---|---|---|---|---|---|
| 44J | 44GG | 100J | 115J | 100J | 22GG | 100J | 44GG |
Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.
Sister sizes of 44J
Sister sizes hold the same cup volume with a different band — the quickest fix when a band feels too tight or too loose.
At the edge of the common range.
Not sure you're a 44J? Two measurements, two minutes — free, nothing stored.
Check my size →Brands that make J-cup bras
44J FAQ
- What is 44J in EU sizing?
- 44J (US) is EU 100J. In UK sizing it is 44GG. Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.
- What are the sister sizes of 44J?
- 44J sits at the edge of the common range; the nearest same-volume options are one band up or down.
- Is 44J the same in every brand?
- No. A 44J can fit differently between brands because of pattern, fabric and cup shape. Use it as a starting point and try a sister size when switching brands.