Conversion
US 30DDD = AU/NZ 8E
Sister sizes (same fit if your size is sold out): 10DD · 6F
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Full conversion chart

RegionSize
US30DDD
UK30E
EU65F
France80F
AU/NZ8E

About this conversion

A US 30DDD converts to a AU/NZ 8E. 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 AU/NZ 8E is out of stock, the sister sizes above fit almost identically because they share the same cup volume.