It's undeniable that many women spend much of their adult lives unsure of their bra size, never having measured their bust or recognizing which styles or cups best suit them. A bra can be a woman's best ally; a tool to highlight her attributes and make her feel not only comfortable and confident, but also sexy and empowered. However, wearing the wrong style or size can also become a source of discomfort.
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How do I know what bra cup size I have?


Your bra size is alphanumeric. This means it's made up of a number and a letter, for example, 34B.
The number is the measurement of the base of the band/back. The letter indicates the cup size and corresponds to the measurement of the bust volume. To take these measurements, you must have a measuring tape in cm on hand.
First, take the tape measure and place it at the base of your bust (right under your breast), around your breast circumference. The tape measure should be completely straight or aligned, both in the back and front. Then, measure the fullest part of your bust, placing the tape measure around your body. The tape measure should be neither too tight nor too loose.
Once you have these two measurements figured out, you can consult our measurement chart or bra size calculator. There, you can tabulate the two numbers you obtained from the measurement, and voila, the system will give you your correct bra size!
Enter your measurements and find out your bra size
More about the bra cup…
There you go! Now that you know how to measure your bust correctly to find your size, let's talk in depth about bra cups.
They vary not only in size, which, as you know, is indicated by the letters, but also in their styles.
Our recommendations
- At Leonisa, cups range from B to D or DD (double D) in some sizes. However, universally, cup A is the smallest.
- Cups A and B are ideal for small busts. Cup B can also fit women with medium breasts.
- Cup C, on the other hand, is flattering for medium or slightly larger busts. D and DD cups are perfect for women with large or heavy busts.
Remember, the best way to be sure of the right cup for you is to take your measurements and find your bra cup size!
Different bra cup styles
The cups also determine, for example, the coverage or the style of bra you will wear.
They're the best in terms of comfort and support. They're full-coverage bras and offer an extra benefit for larger-busted women, as they often have underwire cups, giving them added support and a little lift.
Full-cup bras make wearing underwear easy for any day of the week. They look great under a simple T-shirt, blouse, or dress.
Half-cup bras
As the name suggests, they only cover a portion of your bust, and your cleavage will show off the top. Like balconette bras, the cups are constructed with a smaller or narrower shape, providing excellent support with subtle lift and a rounder appearance. Their beauty lies in their sophistication and versatility. Wear them, for example, with lower-cut garments, and choose a strapless bra to show off your shoulders without revealing your straps.
Our recommendations
The cups can also have built-in padding for a "push-up" effect, which centers and lifts the bust.
Explore all the bra styles we have for you at leonisa.eu. There's one for every day, every occasion, and every mood. Highlight your cleavage, ensure your comfort, and feel more secure and confident. You deserve it!
If you still have questions and want to learn more about cup size or your bra size, you have to read this article.
Frequently Asked Questions
To find your bra cup size, measure the base of your bust and then the fullest part of your breasts. The difference between the two measurements determines your cup size.
To measure your cup size at home, use a tape measure. Measure just under your bust for the base and around the fullest part for the bust. Subtract the band measurement from your bust measurement; this difference tells you your cup size. This way, you'll find the perfect bra for you.
The cup letter indicates the bust size, based on the difference between the bust measurement and the band. For example, A is a small difference and D is a larger one.
If your bra is too tight in the cup area, it can cause discomfort, marks, and lack of adequate support. This is a sign that you need a larger cup size to allow room for your bust and fit without pressure. This way, you'll feel comfortable and have better support.
If the cup is too small, you'll notice your bust bulging or squashing, causing uncomfortable pressure. If it's too large, wrinkles or empty space may form in the cup. The ideal cup hugs your bust without squeezing, offering support, comfort, and a perfect silhouette.
The ideal is to try both to determine which provides the best support and comfort. You can also use pre-formed cups or ask a personal shopper for advice.
Every time you notice changes in your body, such as after pregnancy, weight loss or gain, or hormonal changes. It's also a good idea to do it at least once a year to ensure your bra continues to provide the support and comfort you deserve.
Yes, at Leonisa we offer a complete and easy-to-use size guide so you can find the perfect cup that fits your body and lifestyle. Plus, our team is ready to advise and support you throughout the process, because we want you to feel confident and comfortable.
At Leonisa, the largest cup size we carry is DD. This size offers great support and coverage for your bust. Plus-size bras are also characterized by comfort, not just in the cups, but also in the straps and base.
At Leonisa, the cup sizes range from B to D or DD (double D) in some sizes. However, A is the smallest cup in all sizes.