Berlei to Vanity Fair bra size

The short answer

Berlei 12DD is Vanity Fair 34DD by the two brands' own charts.

Cups are counted along each brand's own letter order, and the band is carried across unchanged.

Every Berlei size read across to Vanity Fair. AU sizes on the left, US on the right.
Berlei	Vanity Fair, by chart	Same label	Vanity Fair also prints
12A	34A	not published	not published
12B	34B	not published	not published
12C	34C	not published	not published
12D	34D	not published	not published
12DD	34DD	not published	not published
12E	34DDD	not published	not published
12F	34G	not published	not published
12G	34H	not published	not published
12H	not made	not published	not published

Neither chart publishes the body each size is built for, so the rows line up the labels. Tinted rows change label or sit between two sizes. 1 sizes have no counterpart on the Vanity Fair chart. Read from the two charts only; no formula and no averaging.

What wearers say

Charts describe a garment. People who own both brands describe a fit, and their answer ranks above this table once five of them stand behind it. Pick your size in the converter to see whether there are enough yet.

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Sources

Berlei size guide, read on 2026-09-18.
Vanity Fair size guide, read on 2026-09-18.

Vanity Fair to Berlei