Have you ever wondered why your bra feels uncomfortable after a few hours? Why the straps slip, why the underwire hurts, or why your bust slightly spills out of the cup? The answer is often much simpler than you think: you are simply not wearing the right bra size. And you are not alone! According to several studies, nearly 80% of women wear the wrong size. So today, let's review this together so you can finally say goodbye to bras that ruin your life.

The method to take your bra size
To take your bra measurement, follow these simple steps:
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First measurement:
the underbust circumference Place the measuring tape just under your bust, keeping it horizontal. The tape should lie flat against your skin without compressing you. Breathe normally and note this number in centimeters. This is your underbust measurement, which corresponds to your bra size number (75, 80, 85, 90, 95, etc.).
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Second measurement:
the bust circumference This time, how to measure the bust circumference? Place the measuring tape around the fullest part of your bust, usually at nipple level. Again, the tape should be horizontal and not tight. Ideally, wear a wire-free bra or nothing at all for this measurement.
Calculating your size
Once you have your two measurements, it's time for the bra size calculation France. The difference between your bust and band measurements determines your breast cup. It's as simple as that!

How to find your bra cup size?
The cup size guide: from A to F and beyond
- 13 cm difference = Cup A: A cup A corresponds to a small bust. If you have a band size of 75 cm and a bust measurement of 88 cm, you wear a bra 75 A.
- 15 cm difference = Cup B: The cup B is one of the most common. A 15 cm difference gives you, for example, a 90B if your band size measures 90 cm. The bra 90B suits a moderate bust.17 cm difference = Cup C: This is where generous cups start. With a 17 cm gap, you need a cup C which offers good support.
- 19 cm difference = Cup D : Women with a cup D often need a bra with a bra underwire reinforced for better support.
- 21 cm difference = Cup E : The bust size generous requires special attention. Theunderwire and the straps must be wide enough.
- 23 cm difference = Cup F and above : For cup sizes important, the choice of a bra a proper fit is crucial to avoid back pain.
Concrete example of calculation
Thus, if you have 90 cm under the bust and 105 cm at the bust:
105 ā 90 = 15 cm ā cup B ā bra 90B
Explanation of bra cups from A to F
Cup sizes are normal: itās not the size that matters but the fit!
- Cup A
For small busts or a bra 75 A or bra 95 A, perfect for a discreet look. -
Cup B
Very common, like the classic bra 90B many women wear. -
Cup C
Versatile, natural, well balanced. - Cup D
Need for reinforced support, often with a strong bra underwire. -
Cup E and F
Structured support, ideal for fuller busts.
Cups sometimes vary by brand, hence the importance of the bra size guide in every store.
Finding your bra size is not a matter of fashion, but of well-being. Measuring your body correctly, understanding your cup size, choosing between bra 75 A, bra 90B, bra 95 A or others, checking the fit, following a reliable bra size guide⦠thatās the real difference between enduring your underwear and feeling perfectly supported.
Wearing the right bra size means:
- the assurance of ideal support
- a more elegant silhouette
- more comfort
- more confidence
- What if choosing the right size changed your day?
Your lingerie is not a detail: itās your armor. Chic, soft, feminine armor⦠and above all perfectly fitted.
