How to Measure Your Bra Size

Talking about bra sizes, we all know that it refers to the cup size and band size. However. although we might know how to interpret the bra size, some of us have no idea on which bra size works for our sisters. If you happen to not know how to read bra size, you can always check our article on bra sister sizing.


An old style

The first thing we should cover is an old bra measuring tactic that we adopted from the olden days of the 1930s. Back in the day, those bras were created using a stiffer and less flexible material, so ladies used to add 4 inches to the band width (or 5 inches if the number was odd) to ensure they didn’t feel uncomfortable wearing the bra, which lead to the common measuring method of adding 4 or 5 to the band. However, 90 years old manufacturing and innovation has led to bras being more flexible and stretchy, meaning we don’t have to add 4 inches to the band anymore. 

Or so we thought. 

Eventually it was discovered that many women with a small cup size actually felt pain from the band if they didn’t add a few extra inches, but most women with a larger cup size benefited from tighter fitting bands to hold the weight of their breasts. This led to problems when it came to measurement due to the fact different sizes led to different measurement requirements. 


How to measure your bra size

Image from istock

So, how exactly do you measure your bra size? Well, what you need to do is first measure the band size (you can add a few inches if you need to) and the cup size, with these two sizes you will be able to measure your bra size. For example, if your band size is 32 and your cup size is C, that means your bra size is 32C. 


How to measure your band size

First, grab a measuring tape! This will make measuring a lot easier. Ask your partner or friend to wrap the measuring tape around your ribcage just underneath your bust to get the measurement. You need someone’s help for this as you need to be standing up straight to get the proper measurement of the band. Once you have done that, you will have gotten your band size! If you feel like you need to add a few inches, you can go ahead and add 2. 

Here is a reference chart for your band size:

Image from Blitzresults

How to measure your cup size

Image from istock

Using the measuring tape, ask your partner/friend to wrap the measuring tape around the widest part of your breasts. Once you have measured it, calculate the difference between the breast measurement and the band measurement. The difference will determine your cup size. If the measurements are the same, you are an A cup. If there is a 1 inch difference, then you are a B cup. If there is a 2 inch difference, then you are a C cup. If you added 4 inches and you find there is a decrease in bust measurement, then chances are you are an AA cup. 

Here is a reference chart for your cup size: 

Image from Blitzresults

What to do if you don’t have measuring tape

If you don’t have measuring tape, don’t worry! Use a long cord or string and simply follow the steps provided. Mark the measurement so you don’t lose it, then you can measure it using a ruler. 

Want some more informative reads? Check out 5 ways to wear bralettes for a casual look!

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