Stand straight with your arms hanging casually by your side; if you can get a friend to measure you around your chest, directly under your bust.
Ideally, measure yourself while you are not wearing a bra, or if you are wearing one, be careful not to sit the tape over any part of your bra. The tape should sit directly under your breasts (where your bra band would normally sit), should be horizontal all the way around and be as tight as possible without being uncomfortable (exactly like your bra’s underband). This measurement is your Underbust.
Still standing straight measure horizontally around the fullest part of your bust (usually over the nipples). This is best done while you’re wearing a good fitting bra. The tape should not be to tight resting lightly on your body. Make sure the tape is straight across your back and is parallel to the floor. This measurement is your Overbust.
Finding your correct Australian Bra Size is as easy as 1, 2, 3. One; follow the instructions below to find your underbust and overbust size. Two; slide the bars to your correct size position to discover your recommended size. Three; start shopping!