Band size (8): An actual band size that measures approximately 68-72 cm around the underbust.
Cup size (E): Represents a larger bust volume with around a 20 cm difference between bust and underbust measurements.

This size suits a petite body size with a fuller bust and is often underrepresented in the market. At The Foundation, we're committed to offering every bra size, including this specialised style, so everyone can find their perfect size.

International Bra Size Chart

Here's a handy size conversion chart so you can compare your 8E size internationally:

Region	Size Equivalent
Australia (AU)	8E
UK	30E
US	30DDD/F
EU	65F
France (FR)	80F

How to Measure Your Bra Size Using a Tape Measure

To find your actual band size and cup size, you'll need a soft tape measure. Here's a quick bra sizing guide:

Measure your band size:

Wrap the tape measure firmly around your ribcage, just under your bust.
Make sure the tape is level and lies flat against your skin.
Round to the nearest even number in cm — this gives your band size.

Measure your bust size:

Measure around the fullest part of your bust.
Ensure the tape is parallel to the floor for an accurate bust measurement.

Calculate your cup size:

Subtract your band size from your bust measurement.
The difference in centimetres determines your cup size.

Example: A 70 cm band and 90 cm bust = 20 cm difference = E cup

Refer to our full Size Guide for more help.

Sister Sizes for 8E

Sometimes, your usual size might not be available in certain styles. That’s where sister sizing comes in — offering the same cup volume with different band fits:

Sister Sizes:

6F (smaller band, larger cup)
10DD (larger band, smaller cup)

These sister sizes help you find the closest measurement and most comfortable fit, depending on the bra style or brand.

Recommended Styles for Size 8E

When shopping for a supportive yet comfortable bra in 8E, we recommend:

Lightly padded bras: Provide gentle structure while enhancing your shape.
Wireless styles: Perfect for all-day comfort with natural support.
Seamless bras: Ideal for fitted clothing and a smooth silhouette.
Full cup bras: Offer full coverage and higher-support style for everyday wear.

Explore by style and find what suits your lifestyle best in our Shop by Style section

Featured Brands in 8E at The Foundation

Our curated collection includes internationally trusted lingerie brands that cater to Australian sizing:

Simone Perele – Known for elegant French design and refined fit.
Marie Jo – Delivers high-fashion bras with precision sizing.
Chantelle – A leader in comfort, innovation and support.
Empreinte – Focused on fuller bust support with beautiful detailing.
PrimaDonna – Designed for premium fit and all-day wearability.

All of these support our commitment to quality, fit, and stylish comfort.

Find Your Perfect Size Today

At The Foundation, we’re here to help you feel confident and supported in your bra. Whether you're shopping your usual bra size or testing a sister size, you'll find fit, function and fashion in one place.

Shop Now and discover your ideal match in size 8E.

FAQs

What is bra size 8E in Australian sizing?

It’s a small band (around 70 cm underbust) with a full E cup, ideal for petite body measurements with fuller busts.

Is 8E the same as 30DDD?

Yes, in international sizing systems, 8E AU equals 30DD in UK and US systems.

How do I know my actual band size and cup size?

Use a tape measure to check your underbust and bust measurements. Then use our size guide or international bra size converter to find your best fit.

What if I can't find 8E in the style I want?

Try sister sizing — either 6F for a snugger band or 10DD for a roomier one. They have the same cup volume.

Do you offer free returns and exchanges?

Yes, we offer 30-day returns and are happy to assist with finding your perfect size. Just follow our return postage process outlined here.

8E Bra Size – Find Your Perfect Fit

Understanding Bra Size 8E