Conversion
France 100I = UK 38G
Sister sizes (same fit if your size is sold out): 40FF · 36GG
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Full conversion chart

RegiónTalla
US38I
UK38G
EU85I
France100I
AU/NZ16G

About this conversion

A France 100I converts to a UK 38G. 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 UK 38G is out of stock, the sister sizes above fit almost identically because they share the same cup volume.