A well-fitted bra is not only important for the right look, but is also crucial in defining your correct posture and lending the needed support. Knowing your correct bra size is the first step towards finding the perfect bra fitting!

Get a measuring tape and make sure you are wearing a well-fitted non-padded bra.

Now, follow these simple steps to find your BRA SIZE.

Find your band size  (UNDERBUST)

  1. Wrap measuring tape around the bottom band, right under your bust
  2. The tape should be level and snug.
  3. Note the measurement in centimetres. Round the number obtained, to the nearest whole number.
  4. Use below measurement table to find your band size that matches your underbust measurement.  e.g. if your undercuts measurement is between 73cm to 77cm, your band size is 12.

Find your Cup size  (OVERBUST)

  1. Wrap the tape around the fullest part of your bust
  2. Make sure it’s neither tight nor loose & without any falls or twists
  3. Round off the number to the nearest whole number.
  4. Use below measurement table to find your Cup size that matches your overbust measurement, corresponding with Band size.  e.g. if your overbust measurement is between 89cm to 91cm, your cup size is “B”.
  • Based on above example measurements, correct bra size would be 12B.


Australia/NZ (cm) CUP A CUP B CUP C CUP D/DD
8 63-67 77-79 79-81 81-83 83-87
10 68-72 82-84 84-86 86-88 88-92
12 73-77 87-89 89-91 91-93 93-97
14 78-82 92-94 94-96 96-98 98-102
16 83-87 97-99 99-101 101-103 103-107
18 88-92 102-104 104-106 106-108 108-112

Even after finding your correct bra size, there are times you might need help from ‘Sister Cup Sizes’. These are alternate sizes where the cup volume the same even though the “band size” and “cup letter” changes. The reason being that cup sizes aren’t consistent by letter, they’re consistent by band size. The larger the band size the larger the cup. Therefore, the cup of 34B is same as 32C or 36A.

Here’s a bra sister size chart/bra cup size chart to help you slip into the perfect one!



10A 8B
12A 10B 8C
12B 10C 8D
12C 10D 8E
12A 10B
14A 12B 10C
14B 12C 10D
14C 12D 10E
14A 12B
18A 14B 12C
18B 14C 12D
18C 14D 12E
16A 14B
20A 16B 14C
20B 16C 14D
20C 16D 14E
18A 16B
22A 18B 16C
22B 18C 16D
22C 18D 16E

Disclaimer: This blog claims no credit for any images posted on this site unless otherwise noted and are copyright of its respective owners. If there is an image appearing on this blog that belongs to you and do not wish for it appear on this site, please email care@stylace.com.au with a link to said image and it will be promptly removed.  Source: Clovia