A Cup Bra Size Guide
What Is A Cup Bra Size?
The letter ‘A’ is just an alphabet on its own, but when associated with a number, it represents a specific bra size. The A-cup size comes before the B cup. It’s important to remember that the A-cup size is associated with different band sizes. Let’s dive into more details about this cup size.
How is the A-cup size bra measured?
Measuring your A-cup size is simple and only takes a few minutes with a measuring tape. For the most accurate results, always measure while wearing a non-padded bra.
Start by measuring your band size - wrap the measuring tape around your ribcage, just below your bust. Make sure it fits snugly but comfortably, and note the measurement in either centimetres or inches. Next, measure your bust size by wrapping the tape around the fullest part of your bust. Ensure it’s neither too tight or loose, and record the measurement.
To get your A-cup size, visit Shyaway’s website and use our bra size calculator. Simply enter your band and bust measurements, and our calculator will give you your perfect size. Alternatively, if you're measuring in inches, add +4 to an even underband size or +5 to an odd size to determine your correct band size. Then, subtract your band size from your bust measurement, and you’ll be able to find your A-cup size.
This is a quick and easy way to get the right fit for an A-cup.
Find the Cup Size Difference
| Difference (in inches) | Cup Size |
| 1 inch | A Cup |
| 2 inches | B Cup |
| 3 inches | C Cup |
| 4 inches | D Cup |
| 5 inches | DD Cup |
Still feel confused? Talk to our customer service team to get clarification.
A Cup Size Bra Styles – What Are the Best Options?
There are plenty of bra styles for A-cups. Whether you want everyday comfort, extra lift or a seamless look, the right bra style can enhance your shape and provide lasting comfort. The best A-cup bra style depends on your lifestyle and outfit choices.
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Everyday Comfort
T-shirt bras, bralettes, full-coverage bras
These offer seamless support and comfort for daily wear. Bralettes are wire-free for relaxed, light support.
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Extra Lift & Cleavage
Push-up bras, plunge bras
Push-up bras add volume and cleavage, while plunge bras create a bold, dramatic neckline for low-cut outfits.
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Support During Workouts
Light to medium support sports bras keep you comfortable and secure during physical activity.
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Chic & Trendy Styling
Balconette bras, bralettes
Balconette bras give natural lift, while bralettes offer comfort and style for casual days.
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Multiway Options
Strapless bras, convertible bras
These versatile options suit various outfits, offering support without straps or adjustable necklines.
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Streamlined Appearance
Minimizer bras provide a smooth, streamlined shape under fitted clothes.
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Natural Shape & Everyday Wear
Seamless bras, wireless bras
Seamless bras provide a smooth appearance under clothes, while wireless bras are ideal for a comfortable, no-fuss option.
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For Special Occasions
Lace bras, balconette bras
Lace bras add a touch of elegance, while balconette bras provide a subtle lift and chic styling for special outfits.
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For Better Support
Padded bras, demi-cup bras
Padded bras offer extra shape and volume, while demi-cup bras provide a lift without too much coverage, perfect for enhancing your bust naturally.
These options are perfect for A-cup women, providing everything from everyday comfort to trendy, fashionable styles for any occasion.
Understanding A-Cup Size Bras from 30A to 52A
The most common bra sizes for an A-cup in India include,
30A Bra Size - A slightly wider band than 28A, offering a better fit for women with small busts, providing light support and comfort.
32A Bra Size - Commonly chosen for smaller busts and petite frames, providing a comfortable fit with a balanced band and cup.
34A Bra Size - Medium band size with a smaller cup, perfect for women with a natural bust and a more defined fit.
36A Bra Size - Slightly fuller cup and wider band than 34A, offering light support and shape for women with medium-sized busts.
38A Bra Size - A fuller cup and wider band than 36A, providing a bit more coverage and support for women with medium busts.
40A Bra Size - A broader band and slightly fuller cup, perfect for women with broader chests and smaller busts, offering added support.
42A Bra Size - Ideal for women with a fuller bust and a slightly larger frame, providing a comfortable fit with ample support.
44A Bra Size - A supportive bra size for plus-sized women with smaller busts, offering a full cup and wider band for extra comfort and lift.
46A Bra Size - Designed for larger figures with smaller busts, this size offers a deeper cup and wider band for increased comfort and support.
48A Bra Size - Provides comfort and support for larger figures with a small bust, offering a comfortable and supportive fit.
50A Bra Size - A larger band size with a small cup depth, ideal for women with broader frames and smaller busts, offering a snug yet supportive fit.
52A Bra Size - The largest band size in the A-cup range, offering a comfortable fit for fuller figures with smaller busts while providing ample support.
What Are the Sister Sizes for A-cup Size Bra?
If your exact bra size isn’t available, you can opt for a sister size.
Sizing Up - This means increasing the band size and decreasing the cup size.
If you usually wear a 32A, your sister size up would be a 34AA. The 34 band will be slightly looser around your ribcage, but the AA cup will be smaller than the A-cup, keeping the overall cup volume similar.
Sizing Down - This means decreasing the band size and increasing the cup size.
If you usually wear a 32A, your sister size down would be a 30B. The 30 band will be tighter around your ribcage, but the B cup will be slightly larger than the A-cup, keeping the overall cup volume the same.
Sister sizing allows you to adjust to a slightly different band size while maintaining a similar cup volume, making it a helpful trick when your exact size is unavailable!
| Actual Size | Sister Size (Up Band, Down Cup) | Sister Size (Down Band, Up Cup) |
| 30A | 32AA | 28B |
| 32A | 34AA | 30B |
| 34A | 36AA | 32B |
| 36A | 38AA | 34B |
| 38A | 40AA | 36B |
| 40A | 42AA | 38B |
| 42A | 44AA | 40B |
| 44A | 46AA | 42B |
| 46A | 48AA | 44B |
| 48A | 50AA | 46B |
| 50A | 52AA | 48B |
Why Do You Need to Buy A Cup Size Bra From Shyaway?
Shyaway offers a wide range of A-cup bras in various styles, including T-shirt bras, balconette, plunge, and sports bras, ensuring comfort, support and style. We make sure that the bras we offer are made from high-quality, breathable fabrics that provide the perfect fit with adjustable straps and seamless designs for all-day wear. Find your ideal A-cup bra at Shyaway for superior comfort and confidence.
With so many options available — T-shirt bras, balconette bras, plunge bras and more — you can find the perfect match for any outfit.
FAQs
1. What is an A-cup bra?
An A-cup bra is for women with a smaller bust size. It indicates a 1-inch difference between the band and the bust measurements, making it the smallest cup size.
2. How do I know if I need an A-cup bra?
To know if you need an A-cup, measure the difference between your underbust and bust. If the difference is around 1 inch (or 2.5 cm), you are likely an A-cup.
3. Can an A-cup bra provide enough support?
Yes! Even though an A-cup is smaller, bras designed for this size provide excellent support through the band and the right structure, offering comfort and lift.
4. What bra styles are best for A-cup sizes?
Some of the best bras for A-cup sizes include push-up bras, T-shirt bras, bralettes and bandeau bras. These styles offer various levels of support and comfort, based on your needs.
5. How can I make my A-cup look fuller?
To enhance the appearance of your bust, try using padded or push-up bras. These bras help add volume and shape to a smaller bust, giving a fuller look.
6. Are there different A-cup sizes?
Yes, A-cup bras come in different band sizes. For example, 30A, 32A, 34A, etc., all represent the same cup size (A), but the band size changes, making a difference in the fit.
7. Can I wear a B cup bra if I'm an A-cup?
You can wear a B cup bra, but it may not provide the best fit. A B cup is slightly larger than an A-cup, which may cause the bra to not fit properly. It's best to stick with your correct cup size for optimal comfort and support.
8. Is it okay to wear a bra without padding in an A-cup?
Yes, it’s absolutely fine. Many women with A-cup sizes prefer to wear non-padded or wire-free bras for a natural look and feel.