Find Your Perfect Bra Size

Simple, accurate, and free. Calculate your ideal bra size in minutes.

Bra Size Calculator

Measure around your ribcage, directly under your breasts

Measure around the fullest part of your bust

How to Measure

1

Underbust Measurement

Stand straight and breathe normally. Measure around your ribcage, directly under your breasts. Make sure the tape is parallel to the floor and snug but not tight.

2

Bust Measurement

Measure around the fullest part of your bust, typically across the nipples. Keep the measuring tape parallel to the floor and don't pull it too tight or too loose.

3

Tips for Accuracy

Wear an unpadded bra or no bra, measure in the morning when your breasts are their natural size, and take the measurement three times to ensure accuracy.

Understanding Bra Sizes

Band Size

The band size is the number in your bra size (e.g., 10, 12, 14). It's based on your underbust measurement. For Australian sizes, a 10 typically corresponds to a 68-72cm underbust, while a 16 corresponds to 88-92cm.

Cup Size

Cup sizes (AA, A, B, C, D, DD, E, F, FF, G, GG, H, HH, etc.) represent the difference between your bust and band measurements. Each cup size represents approximately 2cm or 1 inch difference.

Finding the Perfect Fit

A properly fitted bra should have a band that sits horizontally across your back without riding up, straps that don't slip, and cups that contain all your breast tissue without bulging or gaping.

Everything You Need to Know About Bra Size Calculator for Australian Women

Finding the perfect fitting bra is essential for comfort, support, and confidence. Studies show that over 80% of women wear the wrong bra size, which can lead to discomfort, poor posture, and even health issues. Our bra size calculator is specifically designed for Australian women, using accurate measurement techniques and Australian sizing standards.

A bra size calculator is a valuable tool that takes the guesswork out of finding your ideal bra size. Whether you've lost weight, gained weight, or simply haven't been measured in a while, using a reliable bra size calculator can help you discover your correct measurements. This is particularly important as our bodies change throughout our lives due to hormonal fluctuations, pregnancy, weight changes, and aging.

One of the most common bra sizing mistakes is wearing a band size that's too large. Many women compensate for a cup size that's too small by increasing their band size, resulting in inadequate support. Our calculator helps you determine both your precise band and cup measurements, taking into account the unique Australian sizing system used by major Australian retailers.

Australian bra sizes differ from international standards. While UK and US sizes have slight variations, the Australian system uses a specific numbering convention for band sizes combined with standard cup size letters. Understanding these differences is crucial for Australian women shopping for lingerie, whether online or in-store. Our bra size calculator automatically handles all these conversions, showing you equivalent sizes in AU, UK, US, and EU systems.

Using a bra size calculator offers several benefits beyond just finding your measurements. It promotes breast health by ensuring proper support, reduces back and shoulder pain by distributing weight correctly, and enhances your appearance under clothing by improving posture and silhouette. Additionally, knowing your accurate bra size can save you time and money by reducing returns and exchanges.

For the best results with any bra size calculator, it's important to measure yourself at home when you're relaxed and comfortable. Follow our step-by-step measuring guide, use a soft measuring tape, and take measurements while standing straight with your arms at your sides. Remember that bra sizes can vary slightly between different brands and styles, so the calculated size serves as your starting point for finding the perfect fit.

Whether you're shopping for everyday bras, sports bras, or special occasion lingerie, starting with accurate measurements from a reliable bra size calculator is the foundation of a comfortable bra wardrobe. Our free calculator is designed to provide Australian women with the confidence to shop for lingerie that fits perfectly and supports them throughout their day.