Plus size bra calculator

Find your bra size in just minutes!

Ondermaat BH meten
My band measurement:
Bovenmaat BH meten
My cup measurement:

My bra size is

75 C

(See size charts below to find your US size)


plus size bra size chart
Only a well-fitted bra will feel comfortable & sexy |
See the plus size bra collection at

How to find a comfortable bra? »
How precise should I measure? »
Do I have a bra sister size? »

Why knowing your bra sizes is important?

  • Measuring yourself and finding your best bra size gives you all the control you need when shopping for a bra.
  • A slight change in measurements can change your bra size. This is normal.
  • I designed the bra calculator for women to play around a bit with their measurements.
  • Why?
  • Because you too might fit 2 or 3 sizes. Depending on the bra style and bra brand you’ll know what sizes to try.
  • And become a true bra lover!

Any plus-size woman can become a bra lover. And maybe you’re already are. That’s great. Fact is that lots of women do not wear their right bra size. Researches tell us 60 to 80 percent of women do not wear the right bra size.

How precise should I measure?

measuring tape for a bra
Be precise when taking your measurements

A little difference in centimeters/inches can make a BIG difference. It could mean you might try a different band size and cup size.

So measuring should be done precisely. First, measure your underbust and secondly your bust size.

Learn more about measuring your bust size »

  • it’s normal that you might fit more than one bra size, and both sizes fit you just fine
  • it is also a matter of personal preferences when choosing your bra size
  • some women really dislike a tight band of the bra and tend to choose a looser band
  • it is a thing of trial and error
  • you might have 1 best bra size
  • you might have 2 or maybe 3 sizes that fit you fine, depending on the model and brand of the bra

Mind you. The most support of your bra comes from the band. So this must feel a bit firm, but always comfortable.

Strapless Sticky Bra Push Up Padded Backless Silicone Bra for Large Bust | See Plus size bra collection at

How to find a comfortable bra?

A comfortable is a bra that is right for you. Meaning you wear your best bra size. Any bra can be comfortable as long as the size is right.

There really is only one way to find out what your best bra size is.

  • measure your underbust en bust size
  • write down the measurements
  • check your sizes in the bra size calculator
  • dare to try different sizes, especially if you know or think you’re in between two sizes
  • measure again
  • and again…
  • confidence in measuring yourself will grow when doing it like 3 to 5 times in a row

Read more about finding a comfortable bra and what brands to look for »

I personally have three different bra sizes in my lingerie drawer, and they all fit me fine. Because I’m in between two band sizes I choose a different band size sometimes. In this case, I go up or down a cup size to keep the same cup volume.

For example. If you wear a 44D and want the band a bit tighter on a model you try, but want the same cup size. You choose 42DD in other to keep the same cup volume. 

Bra sister sizes, do I have one?

If you know about bra sister sizes, you’ll know everything you need to know about bra sizing.


  • We all have a sister size we could wear. For example, the bras 40C and 38D have the same cup volume and might fit the same woman.
  • Especially if you’re in between two possible sizes it’s a must know what sizes you can try. Read the full post about sister sizes »

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