Written By - Gaurav Parab

Finding the right bra size can feel like a huge headache, especially with different sizing systems across countries. It can be super confusing to navigate through so many numbers, letters, and styles. It’s no surprise that many women struggle to find their perfect fit. But wearing the wrong bra isn’t just uncomfortable—it can affect your posture, skin, and overall well-being. That’s why we’re here to simplify bra sizing and help you find the perfect fit, whether you’re shopping in Australia, New Zealand, the US, the UK, or Europe. Let’s break it down!

Understanding European, American and UK Bra Sizing

Bra sizing can be confusing because different countries use different systems. Here's a simple breakdown:

Band Size (the number part, like 34 or 40):

• The UK and US use the same numbers (28–52)

• Most of Europe uses numbers from 60 to 120.

• France has its own system (75 to 105).

• Australia follows the European system but uses a slightly different step measurement.
  
  

Cup Size (the letter part, like B or DD):

• All countries use letters for cup sizes, which is the good news

• Small cups (A to D) are the same in Europe and Australia, as they increase by 2cm at each step.

• The UK and US measure in inches (2.54cm per step), so their cup sizes may not always match perfectly with Europe and Australia.
  
  

Larger Cup Sizes:

• A US DDD is the same as an E cup in the UK & Europe.

• The UK has extra sizes like FF, GG, HH, while the US, Europe, and Australia simply continue with single letters.

Understanding Bra Sizing In New Zealand and Australia 

Bra sizes in Australia and New Zealand are based on centimeter measurements:

• The number (like 10, 12, 14) represents the band size (measured tightly under the bust).

• The letter (like A, B, C) represents the cup size (measured loosely over the fullest part of the bust).
  
  

Band Size (The Number)

• Based on dress sizes but not always an exact match.

• Increases in steps of 2 (e.g., 8, 10, 12, 14).

• Each band size covers a 5cm range (e.g., size 10 fits an underbust of 68-72cm, size 12 fits 73-77cm, etc.).
  
  

Cup Size (The Letter)

• Increases in steps of 2cm (e.g., A, B, C, D, DD, E).

• A 10A cup is 82-84cm over the bust.

• A 10B cup is 84-86cm, and so on.

• The only double-letter size in AU/NZ is DD (apart from AA).

Cup Size Changes with Band Size

•  A bigger band size means a bigger cup measurement, even if the cup letter is the same.

• A size 8A measures 77-79cm over the bust .

• A size 14A measures 92-94cm—still an A cup, but a larger overall fit.

How to Find Your Bra Size (Without the Guesswork)

All you need is a measuring tape and two quick measurements:

1. Measure under your bust
Wrap the tape snugly around your ribcage, just under your bust.

• If you're using inches, round up to the nearest even number. That’s your band size.

• In centimeters (like in Australia or NZ), use the size chart—e.g., 68–72cm usually means a size 10.
  
  

2. Measure over your bust
Now, measure around the fullest part of your bust, keeping the tape relaxed.

3. Subtract to find your cup size
Take your bust measurement and subtract your band size. The difference tells you your cup:

• 2cm = A cup

• 4cm = B cup

• 6cm = C cup

With each 2cm step increasing the cup.

Whether you’re shopping in Sydney, London, or New York, understanding how band and cup sizes shift across countries gives you the power to shop smarter and feel better.

At Intimate Queen, we believe that every woman deserves lingerie that fits her body—not the other way around. Our sustainable, body-adaptive bras are designed to support you, no matter your size or where you shop.

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