Conversion
UK 46B = France 120B
Sister sizes (same fit if your size is sold out): 115C
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Full conversion chart

RegionSize
US46B
UK46B
EU105B
France120B
AU/NZ24B

About this conversion

A UK 46B converts to a France 120B. 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 France 120B is out of stock, the sister sizes above fit almost identically because they share the same cup volume.