A size 16C bra is part of the Australian sizing system, designed for a band size of 16 (an underbust of approximately 38 inches) with a cup size C. That means your bust measurement is about 3 inches more than your band. This combination is a sweet spot for many women who need firm support without too much volume. The Australian system is similar to the UK but uses even-numbered bands. Understanding your correct bra size ensures comfort, fit, and confidence with every wear.

International Bra Size Conversion

Region	Equivalent Size
Australia (AU Size)	16C
UK	38C
US	38C
EU	85C
France (FR)	100C

Use our bra size chart or international bra size chart to cross-check your bra size systems across regions.

Sizing Guide – Tape Measure Tips

All you need is a soft tape measure to find your best fit:

Back size: Wrap the tape snugly around your ribcage, just under the bust – this gives your band size.
Over-breast measurements: Measure around the fullest part of your bust – this helps identify your cup size.

The difference between these body measurements gives your correct clothing size and bra fit. For help, explore our bra sizing guide or try our bra size calculator.

In between sizes? Check out sister size options like 14D or 18B for that just-right feel. This is known as cross over sizing.

Our Most Comfortable Bra Styles for 16C

We’ve selected bra styles that work wonders for a 16C Australian size body, ensuring support and style:

Lightly padded bras for everyday shaping
Wireless bras for unmatched comfort
Seamless bras that disappear under clothes
Underwire bras like the Simone Perele Essentiel Full Cup Bra
Full Cup Bras such as the Delice Full Cup Plunge Bra
Moulded Underwire Bras that contour beautifully

Don’t miss out on our new arrivals and exclusive Shop By Size collection just for 16C.

16C Sister Sizes

If you're finding your usual size a touch off, try these sister sizes:

14D – slightly tighter band with a bigger cup
18B – looser band with a smaller cup

Sister sizes can be game-changers for fit, so don't be afraid to experiment.

Brands That Get the Fit Right

Shop confidently from our curated collection. These trusted brands offer stunning styles in 16C:

Ready to upgrade your fit? Shop Now and explore bras made to flatter and support.

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FAQs

What is a 16C in US sizing?

A 16C AU is equivalent to a 38C in the US bra size system.

How do I find my perfect 16C size?

Use a tape measure to check your bust measurement and band, then consult our bra sizing guide.

What are sister sizes for 16C?

Try a 14D or 18B — these have the same cup volume but different band sizes.

What if I prefer a full coverage style?

Opt for the Simone Perele Caresse Full Cup Control Bra or similar Full Cup Bra options.

Can I try on bras in-store?

Yes! Visit our locations for expert fitting help tailored to your body size.

16C Bra Size – Find Your Perfect Fit at The Foundation

Understanding the 16C Bra Size