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Few women in the UK know their exact bra measurements, with some wearing the wrong size for years. You can measure yourself within the comfort of your own home to find out your correct size - here's how.


To measure your bra size, you will need to be wearing a non-padded bra and have a cloth tape measure in inches.

First, you need to measure around the bottom of the bra directly under the bust - making sure the tape is very snug. Round the measurement up to the nearest inch.

If the size is an even number add four, and if it is odd add five - this will then give you your back size. Repeat the process across the fullest part of your breast using your nipples as a guide, measuring in inches, rounding to the nearest inch.

The difference in the inches between the two then gives the cup size. For example, a one-inch difference would make you an A, two a B, three a C, four a D, five a DD, six an E and so on.

So, if your back size is 36 inches and your bust size is 41 inches, that would make you a 36DD.

If you do not feel confident in calculating this yourself, there are many options open to you such as using an online sizing calculator that will work it out for you when you input your measurements. Go to a department store where they may have a bra fitter that can do the measurements and fitting for you.

 How can you tell if you are wearing the wrong size bra?

There are many tell-tale signs that you are wearing the wrong size bra.

It is estimated that most women are wearing one that is far too small for their bust.

Here are the signs to look out for:

The straps keep falling down - they should actually sit comfortably on the shoulder with no pinching or sliding, check they are equal on both sides  

The fabric on the cups does not sit right or bust spills out over the top, sides or bottom - your cups should be smooth and perfectly moulded to the line curve of your breast.


You wear your bra on the last hook on the back - You should be able to get two fingers under and feel a little resistance. If it’s too loose, you need a smaller size. If you’re struggling to get your fingers under then you should try the next size up..

The underwire in the bra pokes into your skin - These should follow the natural curve at the base of your breast as this is where a large amount of support comes from. If they’re sitting on it or too far below, they won’t do their job

The bra straps cause dents in your shoulders - these should sit comfortably on the shoulder without any pinching or sliding, check they are equal on both sides.




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