EU 90J to US Bra Size
Conversion
EU 90J = US 40J
Sister sizes (same fit if your size is sold out):
42I
Shop US 40J bras on Amazon
As an Amazon Associate I earn from qualifying purchases.
Full conversion chart
| Region | Size |
|---|---|
| US | 40J |
| UK | 40GG |
| EU | 90J |
| France | 105J |
| AU/NZ | 18GG |
About this conversion
A EU 90J converts to a US 40J. Bra sizes have two parts — the band (number) and the cup (letter) — and both are labelled differently across regions, which is why the same bra carries a different size in each country. Always check the brand's own size guide too, as cup grading varies between manufacturers.
If US 40J is out of stock, the sister sizes above fit almost identically because they share the same cup volume.