What Size Is 38D Bra? A Comprehensive Guide

A Comprehensive Guide to Fit and Comfort
The size 38D bra, which is often a question for many, includes a 38-inch band measurement and a D cup. In this article, learn how to measure, find correct fits, and understand sister sizing. What size is 38D bra? Let’s explore that further. The 38D bra size consists of a 38-inch band and a D cup, which indicates a 4-inch difference in bust measurement, providing significant support and shaping. Accurate measurement of the band and an understanding of sister sizes can help find a comfortable and supportive fit, with common alternatives for 38D being 36DD and 40C. International size equivalents for a 38D vary across regions, with notable conversions including 85E in Europe, 85D in the UK, and 16D in Australia, emphasizing the importance of knowing local sizing standards.
Understanding 38D Bra Size

The 38D bra size might seem like a mystery, but it’s simply a combination of the band and cup measurements. The number 38 refers to the band size, which is the measurement around the ribcage just below the breasts. This is crucial as it provides the primary support for the breasts. The letter ‘D’ represents the cup size, indicating a 4-inch difference between the bust measurement and the band size, which signifies the breast volume.
The volume of the cup increases with the band size. For instance, a 38D cup has more volume than a 34D cup, even though they share the same letter. This means that the cup size is not solely about the volume but also how it relates to the band size. A well-fitting 38D bra can significantly enhance posture and improve appearance by lifting and shaping the breasts.
Understanding these measurements is the first step towards measuring a bra that fits perfectly. Knowing your band and cup size helps in choosing a bra that not only looks good but also feels comfortable and supportive.
Band Size Measurement
Accurate measurement of the band size is essential for achieving a supportive and comfortable fit. To measure bra size:
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Take a tape measure.
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Wrap it around your ribcage, just under your bust where the band of the bra will sit.
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Make sure the tape measure is level around your body to get an accurate reading.
It’s recommended to measure while wearing a well-fitting, non-padded bra to get the most precise band size. Once you have your measurement, if it’s an even number, add four inches; if it’s odd, add five inches to determine your band size. For example, if your measurement is 34 inches, your band size would be 38.
The band size is crucial because it provides the primary support. If the band size is too loose, it won’t provide adequate support, and if it’s too tight, it can cause discomfort. Ensuring the correct band size is the foundation of a well-fitting bra.
Cup Size Explained
The cup size in a bra indicates the volume of the breast tissue and is determined by the difference between the bust and underbust measurements. In North America, cup sizes typically progress as follows: cups A to D, C cup, DD, DDD, G, H, I.
This progression indicates increasing volume.
Cup size is relative to band size. For example, a 38D is different from a 32D, even though they share the same cup letter. The volume of the cup increases as the band size increases, meaning a 38D has more volume than a 34D. This relativity can make understanding cup sizes a bit complex, but it ensures a better fit.
The perception of cup sizes as large or small can be misleading. A 38D may seem big to some, but it is quite common and offers a balance of volume and support. Understanding these nuances helps in finding a bra that fits well and feels comfortable.
International Size Equivalents for 38D Bras

Shopping for bras internationally can be confusing due to different sizing systems. Here are some size equivalences:
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A 38D in the US is also 38D, maintaining consistency across those measurements.
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In European sizing, a 38D translates to an 85E.
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In the UK, a 38D corresponds to an 85D.
In Australia and New Zealand, a 38D bra is equivalent to a size 16D, while in France, it corresponds to a 100D. Knowing these international size equivalents is crucial when shopping across different regions, ensuring you find the right fit regardless of where you are.
Sister Sizes for 38D Bras

Sister sizes are a helpful concept in bra fitting, offering alternative sizes with the same cup volume but different band sizes. For a 38D bra, sister sizes include 36DD and 40C. This means if the band size of a 38D feels too tight or too loose, you can try its sister sizes for a better fit.
Sister sizing is especially useful when the original size is uncomfortable or unavailable. It provides flexibility in finding the perfect fit, ensuring that you don’t have to compromise on comfort, support, or your usual size.
Common Misconceptions About 38D Bras
One common misconception about the 38D bra size is that it signifies an unusually large size. In reality, it is quite common, with many women falling within the D cup range. This misconception often leads to negative stigmas, making women feel they are in a specialized or inferior category.
Another misconception is that bra sizes are consistent across different brands. However, sizing can vary significantly, making it essential to try on bras from different brands to find the best fit. Understanding these misconceptions can help women feel more confident and informed when shopping for bras.
Tips for Finding the Perfect 38D Bra

Finding the perfect 38D bra often requires some trial and error. The key is to start with the correct band size, as it provides the primary support. When trying on a new bra, fasten it on the loosest hook to allow for adjustment as the band stretches over time.
Comfort is the most reliable indicator of a good fit. If you decrease the band size, you should increase the cup size, and vice versa, to maintain a similar fit while fitting perfectly. Determining different styles and cuts is also crucial, as each style can influence how a specific size feels.
Remember, the goal is to find a bra that feels good and provides the necessary support throughout the day.
Popular Styles of 38D Bras
The 38D size is available in various styles, including:
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Push-up
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Strapless
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Lace
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Balconette bras
Each style caters to different preferences and occasions, providing options for both aesthetics and outfit brand support.
Testing different styles helps find the one that best accommodates your breast shape and personal comfort.
Push-Up Bras
Push-up bras are designed to enhance cleavage by using padding to lift the breasts. This makes them a popular choice for those seeking more pronounced curves. These bras are specifically crafted to provide a lifted appearance, utilizing padding and structured support.
For a 38D size, a push-up bra can add volume and provide a more defined shape, making it ideal for special occasions or outfits that emphasize the bust. They are a go-to choice for anyone looking to enhance their natural curves.
Strapless Bras
Strapless bras are a wardrobe essential, providing the necessary support without shoulder straps. They feature silicone grips along the band to ensure they stay in place, even without the additional support of straps. This “stay put” technology minimizes slipping, ensuring reliable support.
These bras are designed for outfits that do not allow for shoulders straps, making them both practical and versatile. Whether you’re wearing a strapless dress or a top with unique shoulder designs, a well-fitting strapless bra is crucial for both comfort and style.
Lace Bras
Lace bras combine delicate detailing with supportive structures, making them suitable for both regular wear and special occasions. They offer a blend of style and comfort, providing substantial support while looking elegant.
These bras are versatile, making them a great choice for adding a touch of elegance to your everyday wardrobe or for wearing on special occasions. With their decorative elegance and supportive design, lace bras and various bra styles are a favorite among many women.
Balconette Bras
Balconette bras are designed with a horizontal cup cut that provides a unique shape, boosting the breasts upward and outward. This style enhances the natural shape of the breasts, making them appear fuller and more rounded.
With their supportive structure, balconette bras offer excellent lift, making them a popular choice for achieving a flattering silhouette. They are ideal for outfits with lower necklines, providing both style and support.
International Size Chart for 38D Bras

Understanding international size equivalents is crucial for finding the right bra fit when shopping across different regions. In the UK, a 38D is equivalent to a size 85D. The Australian size for a 38D bra is labeled as 16C.
In European sizing, a 38D is noted as 85D, while in French sizing, it corresponds to a 100D. This size chart helps you navigate different sizing systems, ensuring you find the perfect bra regardless of where you shop.
Summary
In summary, understanding the specifics of the 38D bra size, including band and cup measurements, international equivalents, and sister sizes, is essential for finding the perfect fit. Accurate measurements and knowing how to read size charts can make shopping for bras less daunting.
Ultimately, the goal is to find a bra that provides comfort, support, and confidence. Don’t be afraid to try different styles and sizes to find the one that suits you best. Remember, a well-fitting bra can significantly enhance your overall appearance and comfort.
Frequently Asked Questions
How do I measure my bra size?
To find your bra size, measure your ribcage just under your bust for the band size, then measure around the fullest part of your bust. Subtract the band size from this measurement to determine your cup size.
What are sister sizes for a 38D bra?
Sister sizes for a 38D bra are 36DD and 40C, as they maintain the same cup volume while adjusting the band size.
Why do I need to know international size equivalents?
Understanding international size equivalents is essential for achieving the perfect fit in bras, as sizing varies significantly across different countries. This knowledge ensures you make well-informed purchasing decisions, avoiding the frustration of improper sizing.
Are D cup bras considered large?
D cup bras can be considered large, but their size is relative to the band size, making a 38D significantly larger in volume than a 34D. Therefore, the perception of size varies based on the individual’s body proportions.
How can I ensure my strapless bra stays in place?
To ensure your strapless bra stays in place, choose one with silicone grips and make sure the band fits snugly yet comfortably. This combination will help prevent slipping throughout the day.