How to Measure Your Bra Size

How to Measure Your Bra Size

How to Measure Your Bra Size

I know its hard to believe, but 8 out of 10 women are wearing the incorrect bra size. Most wear a bra that is too large in the back and too small in the cup. Popular T.V. shows such as Oprah and TLC have dedicated entire segments on this issue because the problem is so prevalent. One thing to remember is that there are many factors can cause you to change bra size such as weight gain or loss, exercise, pregnancy a change of diet, etc. If you’ve experienced wrinkling in the cups, the under wire poking your sides, cup spillage, slipping straps or are just looking for a better fit, here’s how to find your true bra size.


Determine If Your Wearing the Wrong Size

Here are some common signs that you may not have the right size bra. If you are experiencing any of these problems you want to consider measuring yourself.

  • If when you raise your hands above your head, your breasts fall out below the bra. Usually dropping a band size corrects this issue.
  • The middle part of your bra, the section that sits between your breast, doesn’t sit flat against your sternum. You may need a larger cup size.
  • Does the band ride up your back. This means your band size is too large.
  • The back of the bra should not dig in or appear as if it is being stretched. If it does you need a larger band size.
  • Bra straps should provide only 10% of the bras total support.  If your straps are doing all the work and leaving red marks on your shoulders, consider dropping down a band size.
  • Do you “overflow” out of the cup? This indicates that the cup size is too small.
  • Your bra band should not be giving you the illusion of back fat. If this is happening try a larger band size.

Measure Your Bra Size

Your will need a flexible measuring tape and a mirror. When you take your measurements. stand straight and relaxed in front of a mirror with your arms down. For the most accurate results, have someone help you.

Step 1.

Measure Your Band

This measurement is for your band size. Run a tape measure around your torso, just underneath your breasts, making sure no breast tissue is included in the measurement and releasing all the the air from your lungs (you want this measurement to be as small as possible). Round fractional measurements to the nearest whole number.

Measure Bra Band Size
Step 2.

Measure Your Cup

Now measure the fullest part of your bust, usually across the nipples. Breathe normally for this measurement and round fractional measurements to the nearest whole number.

Measure Your Cup Size

Calculate Your Recommended Bra Size


Band Size Chart

If Your Measurement Is: 27 28 29 30 31 32 33 34 35 36 37 38
Your Band Size Is: 30 32 32 32 34 34 34 36 36 36 38 38


Cup Size Chart

To determine you cup size, subtract your band measurement from your cup measurement and correlate this number with the cup size chart below. The larger the difference, 4+ the less accurate the chart becomes.

If The Difference Is: Your Standard Cup Size Is:
0″ to 1/2″ (1.3cm) AA
1/2″- 1″ (2.6 cm) A
2″ (5.1 cm) B
3″ (7.6 cm) C
4″ (10.2 cm) D
5″ (12.7 cm) DD * or E *
6″ (15.2 cm) DDD * or F *
7″ (17.8 cm) G *
8″ (20.3 cm) H *
9″ (22.9 cm) I *
10″ (25.4 cm) J *

* Different brands call cup sizes larger than a D different letters (a DDD cup size in one brand can be called an E or F in another).

I love everything beauty, personal care and fashion! I'm the editor of, and have been a professional cosmetologist for over 12 years.

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