Bra Size Calculator

We know where to start - Our bra size calculator will start your journey to finding the perfect fit

What if we told you there is a perfect bra out there for you. A bra that doesn’t slide off your shoulders, won't dig in where it shouldn’t, or create ‘back fat’ you don't have. A bra that feels like you're not even wearing one at all.

Such a bra really does exist and our specially trained Bras N Things fit experts can help you find your perfect fit.

We all know the difference the right bra can make to the overall look of your outfit. Like every piece of clothing in your wardrobe, each Bras N Things bra is designed and created with a specific function and purpose in mind. A t-shirt bra, a strapless bra and a fashion bra all offer a different type of fit, support and feel.


Discover Your Perfect Fit: The Bras N Things Bra Size Calculator

Finding a bra that truly fits is transformative, enhancing both comfort and confidence in your everyday wear. At Bras N Things, we understand this profound impact. Our reliable online bra size calculator is designed as your first step towards finding bras that feel as good as they look. t. This essential tool, functioning as a precise bra measurement calculator, empowers you to take control of your comfort, setting the stage for a superior lingerie experience. It acts as your initial bra size estimator, guiding you towards the perfect foundation for every outfit.


Simple Steps to Measure Your Bra Size

To accurately determine your ideal bra dimensions, a precise measurement is essential. Our straightforward guide will walk you through the key steps required to find your unique bra size. Following these instructions carefully will enable you to effectively use our online tools, including the Australian bra size calculator and the NZ bra size calculator.

How to discover your correct Australian Bra Size for the perfect bra fit. Follow the below instructions to find out your underbust and overbust size. Once you've got them, line them up on the dial to reveal your recommended bra size. Then start shopping!

1. Underbust Size

Measure around the body, directly below the bust.

63cm
112cm

2. Overbust Size

Measure across the fullest part of the breast.

77cm
140cm
  • 8
  • 10
  • 12
  • 14
  • 16
  • 18
  • 20
  • 22
  • 24
  • 26
  • A
  • B
  • C
  • D
  • DD
  • E
  • F
  • G
  • H
30A 30A 65A 80A 0A

Step 1: Measure Your Underbust (Band Size)

Stand naturally with your arms relaxed at your sides. Wrap a soft measuring tape around your ribcage directly under your bust, where the band of your bra would sit.

The tape should be firm and level all the way around (parallel to the floor) but not uncomfortably tight - you should be able to fit one finger underneath. Take this measurement without a bra, or wearing a non-padded bra.

This is your underbust measurement, which determines your band size.

Step 2: Measure Your Overbust (Cup Size)

Wearing a non-padded bra, measure around the fullest part of your bust (usually across your nipples).

Keep the tape level and parallel to the floor, and hold it gently without pulling tight or letting it sag.

This is your overbust measurement, which helps determine your cup size.

Step 3: Finding Your Bra Size

Enter your underbust and overbust measurements into our online bra size calculator to get your recommended size. This is your starting point!

We always recommend trying on bras and adjusting as needed, as sizing can vary slightly between styles.

For a complimentary professional fitting and personalised advice, visit any Bras N Things store - our fit specialists are here to help you find your perfect fit.

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