AU to US conversion

AU 14DD in US Bra Size

Convert 14DD from Australian sizing to US sizing, with the full international table, sister sizes, and practical fit checks in one place.

Instant answer

14DD (AU) =

36DD US

In this sizing table, 14DD in Australian sizing converts to 36DD in US sizing.

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If you are starting from body measurements instead of a known label, use the AU/NZ calculator with centimetres selected by default.

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Full conversion table for 14DD (US 36DD)

36DD bra size conversion across US, UK, EU, French, and Australian sizing.
US	UK	EU	FR	AU
36DD	36DD	80E	95E	14DD

Bra sizing varies between brands. Use this as an accurate starting point and check the fit.

What this conversion means

If you are shopping from a Australian size chart, use 36DD as the closest US starting label for 14DD. This is still a label translation, so brand grading, fabric, and wire shape can change the final fit.

Sister sizes for the US equivalent (36DD)

Sister sizes: 34DDD and 38D can be worth checking when the cup volume feels close but the band needs a different feel.

What measurements make a 14DD?

14DD starts with the underbust, then adds cup depth from the bust measurement. In the current calculator formula, the closest starting range is about 35-37 inches (89-94 cm) under the bust and about 40.5-41.5 inches (103-105 cm) around the fullest part of the bust. The band comes from the underbust rounding, while the cup step comes from the difference between bust and band. This page uses 36DD as the US equivalent for those measurement notes.

Is 14DD big or small?

The label 14DD can look more dramatic than it fits, especially across systems. In this size set, the US equivalent uses a middle band and a fuller cup step. Cup letters are relative to the band, so a D on one band is not the same volume as a D on every other band. The most useful question is whether the band stays level and the cups hold smoothly, not whether the label sounds large or small.

If 14DD doesn't fit right

Band rides up: The band may be too loose or stretched out; try a snugger band or compare the snugger sister size.

Cups gape: The cup may be too roomy, too deep, or pulled away by a loose band; check the band before changing cup volume.

Cups spill: The cup volume may be too small or the cup shape may be too closed; try one cup step up before changing the band.

Straps dig in: The straps may be compensating for a band that is not supporting enough; reset the band fit before tightening straps.

How 14DD differs between brands

Brand sizing matters for 14DD because cup depth, wire width, and band stretch are design choices. A firmer elastic can make the same band feel smaller, and a shallow or narrow cup can make the same cup letter feel different. Check the retailer chart, read fit notes when available, and compare the label against the brand and region sizing guide before treating the conversion as final.

Shopping for 14DD

A good shopping path for 14DD starts with everyday support, then moves into outfit-specific shapes. If the cup is in a lower or middle step, lightly lined T-shirt styles can make gaps easy to spot. Fuller cup steps often benefit from styles with steadier side support, deeper cups, or a balconette shape depending on breast shape. For special outfits, compare the fit needs in the outfit guides before choosing a strapless, plunge, or backless option.

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FAQ

Is 14DD the same as 36DD in the US?

In this dataset, 14DD (AU) converts to 36DD in US sizing. Some brands publish their own charts, so use this as the closest standard label and still check the real fit.

What is 14DD in European sizing?

14DD (AU) matches the same base record as 80E (EU). The full table on this page shows each supported label side by side.

How do I check the fit of 36DD?

Start with the band: it should feel firm and even around your ribcage. Then check cup containment, wire comfort, and whether the center gore lies close on wired styles.

What sister sizes work with 36DD?

34DDD and 38D are the closest sister-size options for 36DD in this dataset. Try a sister size when cup volume feels close but the band needs to feel snugger or looser.

Why do bra sizes differ between countries?

Bra labels are written differently across US, UK, EU, French, and Australian systems. Cup letters can also diverge after D, so a converted label is a starting point rather than a promise of identical fit.

What measurements usually make 14DD?

14DD maps to US 36DD here. The current calculator formula points to about 35-37 inches underbust and 40.5-41.5 inches bust, or roughly 89-94 cm and 103-105 cm. Treat that as a starting range and then check the real fit.