Bra Size Calculator & Conversion Chart: Measure Bust & Convert Sizes (2024)

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Discover the Perfect Fit: Find Your Ideal Bras Today - Shop Here Bra Size Calculators Use our bra size calculator on bra product pages Discover the Perfect Fit: Find Your Ideal Bras Today - Shop Here Bra Size Calculator US vs. Bra Size Calculator UK Differences Between US and UK Bra Size Calculators How to Find the Perfect Bra for You 1. Remeasure Regularly 2. Recognize Red Flags 3. Dress for Success 4. Buy in Bulk 5. Don’t Be Afraid of Online Shopping Discover the Perfect Fit: Find Your Ideal Bras Today - Shop Here Commonly Asked Questions about Bra Size Conversion 1. What is bra size conversion? 2. Why is bra size conversion necessary? 3. How do I convert my bra size from one system to another? 4. Are bra sizes the same worldwide? 5. Is there a universal bra size conversion chart? 6. Are all bra size conversions accurate? 7. How can I calculate my bra size? 8. What is 34DDD equivalent to? 9. What bra size is US equivalent? 10. What is DDD bra size equivalent to? 11. Is a DDD the same as an F? 12. Is 34DDD medium or large? 13. What is the difference between DD and DDD? 14. What is the difference between DDD and G cups? 15. What is the most popular bra size in America? 16. What is the average breast size of a woman in the world? 17. What is the most beautiful bra size? 18. What bra size are most models? 19. Is 34DDD the same as 36D? 20. Is a 36DDD bigger than a 38DD? 21. How much does the average DDD breast weigh? Discover the Perfect Fit: Find Your Ideal Bras Today - Shop Here Conclusion Learn More About Bra Sizes FAQs References

Bra size charts are a measurement tool that lays out the basics of bra sizes and how they correspond to certain band and bust measurements. They organize bust and band measurements into a comprehensive chart that matches these measurements with bra cup letters and band sizes. These charts can be an extremely helpful resource for at home-bra measuring.

You can find bra size charts for most common international sizing systems, including the US, UK, and EU systems. You can also find bra size charts for sister sizes—bra sizes that are equivalent in cup volume but differ in cup letter and band size—which can help you determine which sizes to try if your measurements are in between sizes.

Bra Size Calculator & Conversion Chart: Measure Bust & Convert Sizes (1)Bra Size Calculator & Conversion Chart: Measure Bust & Convert Sizes (2)

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If you're looking for beautiful and well-fitting bras, be sure to check out the exquisite collection atHaute Flair's Bras. HauteFlair offer's a wide range of styles and designs to suit your personal taste and provide the support you need.

Bra Size Calculators

Bra size calculators are another valuable tool that can help you determine your ideal bra size based on your at-home measurements. These calculators allow you to enter your bust measurement and band measurement separately and assign you a bra size according to your entries. This saves you from the confusion of having to manipulate your raw measurements to calculate your ideal bra size by hand.

If you’re shopping online for a new bra, always check if the online shop offers a bra calculator. Many online lingerie stores provide a bra size calculator that assigns you a size that is specific to the brands they sell. Even if you know your normal bra size, input your measurements into a bra size calculator whenever possible to make sure your size matches up with the sizing of the bra you’re considering buying.

Use our bra size calculator on bra product pages

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Bra Size Calculator US vs. Bra Size Calculator UK

Bra size calculators are an especially helpful resource when it comes to calculating your bra size in a sizing system that is unfamiliar to you. The US and UK bra sizing systems have subtle but significant differences between them. These two systems are two of the most commonly used sizing systems among mainstream lingerie brands, so you’re likely to come across both of them at some point throughout your bra shopping endeavors regardless of which part of the world you live in.

Differences Between US and UK Bra Size Calculators

There are some important differences between using a US bra size calculator versus using a UK bra size calculator. US bra size calculators generally ask you to enter your measurements for bra cup sizes in inches, while UK calculators accept data for bra cup sizes in centimeters. However, some more advanced bra size calculators—which are for free use online—allow you to decide whether or not you want to input your data in inches or centimeters as well as choose which sizing system you want your bra size to match.

How to Find the Perfect Bra for You

1. Remeasure Regularly

Few things are guaranteed in life, but you can pretty much count on the fact that your bra size will not stay exactly the same throughout your entire adult life. If you’ve been wearing the same bra size on autopilot for more than several years, it’s very likely that the size you’re wearing is incorrect even if it was once the ideal size for you.

It’s a good idea to remeasure your bust every time you’re considering buying a new bra. This might seem excessive, but your bust size changes significantly in response to even the most subtle shifts in your body composition. Losing five pounds or taking up light weight-lifting at the gym can cause your cup size to change by a full letter. Larger changes in your body, like major weight loss, pregnancy, or menopause usually result in even more drastic shifts in size.

Since your body changes gradually, you probably won’t even notice if the bra size you’re used to wearing becomes less accurate over time. Wearing an ill-fitting bra still causes you to receive inadequate support and leads to discomfort regardless of whether or not you notice your bra size has changed, which is why it’s so important to confirm your size before you buy a new bra.

2. Recognize Red Flags

Measuring your bra size correctly is important, but it doesn’t guarantee that every bra in that size will be your perfect fit. Some bras follow a skewed sizing system, or are just poorly designed and won’t fit you correctly even if they’re labeled with your size. Learning to recognize the red flags of a hopelessly ill-fitting bra can cut uncertainty out of your bra shopping process and prevent you from accidentally buying an uncomfortable bra that lacks the support and security you need.

The first things you should keep your eye out for when you try on a bra are gapping or wrinkled cups. If your bra cups don’t lay flat against your skin or wrinkle, that means the cups are too large and your bust isn’t adequately filling them. On the other hand, if the cups of a bra are digging into your skin, that’s a clear sign that you need to go up a cup size.

The straps of a bra are a useful indicator of how well the band is supporting your bust. If the straps of a bra slip down over your shoulders or dent your skin, that means that the band of the bra is either too loose or too tight and is forcing the straps to pick up its slack in terms of support. Also, a bra’s band riding up or digging into your skin are also signs that it is too large or too small for you. Your band should stay securely in place and its center—the part in between the cups—should lay flat against your chest at all times. Test the fit of a bra’s band by lifting your arms up over your head when you try it on. If the band rides up at all, it doesn’t fit you correctly.

Any new bra you buy should always fit you best when fastened on the loosest clasp. Bras stretch out naturally over time, so any bra that only fits you when you fasten it on the tightest clasp from the get-go will likely only end up fitting you for a very short period of time.

3. Dress for Success

Have you ever tried on a bra in a store, loved it and brought it home, and then ended up hating the way it looks underneath every piece of clothing you own? This frustrating phenomenon is much more common than it should be, but it’s completely preventable. Bras tend to look very different when you wear them alone versus when you wear them under a top; just because a bra fits when you try it on by itself does not mean it will still look good after you get dressed. Always try on a bra underneath a top before you make a purchase to determine whether or not a certain bra fits well when you’re actually wearing clothes.

A form-fitting—but not overly tight—T-shirt is one of the best test tops to wear when you go bra shopping. T-shirts are one of the most difficult tops to pair with a bra. The thin, form-fitting fabric of standard tees tends to reveal bulges, gapping, seams, and dreaded quad-boob much more clearly than other top styles. After all, one of the most popular bra styles—T-shirt bras—are designed specifically to maintain a smooth, invisible finish underneath your T-shirts. If a bra you try on still looks good and fits well when you wear it under a T-shirt, chances are it will work well with almost any other top you own.

4. Buy in Bulk

Finding a well-fitting, high-quality bra you truly love is akin to finding a pot of gold at the end of a rainbow. If you find a bra that is comfortable, supportive, attractive, and fits you well, consider buying more than one. The fit of different bra styles varies depending on their materials, design, and the quality of their construction. Loving a bra style in a certain size from one brand doesn’t mean that you’ll love a similar style in the same size from a different brand. Plus, there’s no guarantee that a certain brand will continue selling your favorite bra style indefinitely.

Buying more than one copy of your favorite everyday bra style gives you insurance against the frustration of changing inventory options, but you shouldn’t buy more than three identical bras. Within a few years, your bra size will probably change slightly, rendering a never-ending collection of one bra style in one size a useless waste of money. Only purchase two or three copies of the same bra at a time, and remeasure yourself before buying again.

5. Don’t Be Afraid of Online Shopping

As long as you know how to measure your own bra size correctly from home and recognize the red flags of an ill-fitting bra, you should be able to find just as much success with bras you buy online as with bras you find in brick-and-mortar lingerie and department stores. While you shouldn’t be afraid to buy bras online, you should still exercise a good amount of caution when determining whether or not to make a purchase from a certain online shop.

Always review the bra size charts on an online store before you buy a bra from that website. Make sure that you measure your bust according to the sizing system the store uses. Never assume that a certain store uses a US sizing system just because they’re a US-owned company—many US-owned online stores carry bras that are made by international manufacturers and conform to a different sizing system.

Also, check reviews whenever possible to get a better idea of both the quality of the bra you’re considering as well as the reputation of an online store itself. If a certain online shop doesn’t list reviews on its products and you can’t find much information about it through online searches, that’s a good sign that you’ll probably have more success shopping elsewhere. There are plenty of honest, reputable online lingerie stores that sell real, high-quality bras, so you should never settle for buying from a sketchy, little-known retailer.

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Commonly Asked Questions about Bra Size Conversion

1. What is bra size conversion?

Bra size conversion refers to the process of converting a bra size from one sizing system to another. This is often necessary when shopping for bras in different countries or when dealing with different sizing standards.

2. Why is bra size conversion necessary?

Bra size conversion is necessary because different countries and brands use different sizing systems for bras. For example, the United States uses a different sizing system than the United Kingdom or Europe. Converting your bra size helps ensure you choose the correct size when shopping internationally or trying different brands.

3. How do I convert my bra size from one system to another?

To convert your bra size, you'll need to refer to a bra size conversion chart. These charts typically list the corresponding sizes across different sizing systems. For example, if you wear a 34C in the United States, the chart will tell you that it corresponds to a 75C in Europe or a 34C in the United Kingdom.

4. Are bra sizes the same worldwide?

No, bra sizes are not the same worldwide. Different countries and regions use different sizing systems, and the way sizes are labeled and measured can vary. It's important to understand these differences and refer to conversion charts or consult with sizing guides provided by specific brands when shopping internationally.

5. Is there a universal bra size conversion chart?

While there isn't a universal bra size conversion chart that applies to all brands and countries, there are several widely used conversion charts available online. These charts provide approximate conversions between different sizing systems, but it's important to note that variations may exist due to differences in manufacturing and fit.

6. Are all bra size conversions accurate?

While bra size conversion charts can be helpful, they are not always 100% accurate due to variations in sizing standards across brands and countries. Additionally, different styles and cuts of bras may fit differently even within the same size. It's always recommended to try on bras or consult with the brand's specific sizing guidelines when possible.

Remember that bra sizes can also vary within the same sizing system, as different brands and styles may have slight variations in fit. It's essential to consider factors such as cup shape, band width, and overall bra design when determining the best size for you.

7. How can I calculate my bra size?

To calculate your bra size, you'll need to measure two key aspects: the band size and the cup size. For the band size, measure around your ribcage just below your breasts, making sure the measuring tape is snug but not too tight. Round the measurement to the nearest whole number. For the cup size, measure around the fullest part of your breasts and subtract the band measurement from this number. Each inch difference corresponds to a cup size (e.g., 1 inch = A cup, 2 inches = B cup, and so on). Combine the band size and cup size to determine your bra size (e.g., 34B, 36D, etc.).

8. What is 34DDD equivalent to?

The equivalent size to 34DDD can vary depending on the sizing system used. In the United States, 34DDD is equivalent to a 34F. However, it's important to note that sizing can vary between brands, so it's always best to refer to a specific brand's sizing chart for accurate conversions.

9. What bra size is US equivalent?

The US bra sizing system typically uses alphabetical cup sizes (A, B, C, etc.) and numerical band sizes (30, 32, 34, etc.). The US equivalent sizes can vary depending on the country or sizing system being compared. For example, a US 34D is equivalent to a UK 34D or a European 75D.

10. What is DDD bra size equivalent to?

The DDD cup size is equivalent to an E cup in some sizing systems. In the UK and Europe, DDD is usually labeled as E. However, it's important to note that sizing can vary between brands and countries, so it's best to consult a specific brand's sizing chart for accurate conversions.

11. Is a DDD the same as an F?

In some sizing systems, DDD and F can be equivalent cup sizes. However, this can vary depending on the country or brand. It's best to refer to a specific brand's sizing chart for accurate conversions between DDD and F.

12. Is 34DDD medium or large?

Bra size is not directly categorized as medium or large. The band size (34) refers to the circumference of the ribcage, and the cup size (DDD) indicates the volume of the breasts in relation to the band size. Bra sizes are more specific and personalized measurements rather than generic classifications like medium or large.

13. What is the difference between DD and DDD?

The difference between DD and DDD is one cup size. DDD is one cup size larger than DD. In terms of volume, DDD offers more space in the cups to accommodate larger breasts than DD.

14. What is the difference between DDD and G cups?

The difference between DDD and G cups is also one cup size. G is one cup size larger than DDD. This means that G cups offer more volume and space in the cups to accommodate larger breasts compared to DDD.

15. What is the most popular bra size in America?

The most popular bra size in America can vary, and it's challenging to determine a single definitive answer. However, some studies suggest that 34B and 36C are commonly worn bra sizes in the United States.

16. What is the average breast size of a woman in the world?

Breast size can vary significantly among women worldwide. There is no universally established average breast size as it varies across different populations and regions. It's important to remember that every individual's body shape and size is unique.

17. What is the most beautiful bra size?

Beauty is subjective, and there is no specific bra size that can be considered the most beautiful. Beauty is diverse, and every individual has their own unique preferences and perceptions of beauty.

18. What bra size are most models?

Models' bra sizes can vary significantly depending on the specific industry, modeling agency, and individual preferences. While there may be some commonly seen sizes among models, it's important to remember that models, like all individuals, have diverse body shapes and sizes.

19. Is 34DDD the same as 36D?

No, 34DDD is not the same as 36D. The band sizes are different, with 34DDD having a band size of 34 and 36D having a band size of 36. The cup sizes are also different, with DDD being one cup size larger than D.

20. Is a 36DDD bigger than a 38DD?

Yes, a 36DDD is bigger than a 38DD. The band size of 36DDD is smaller than 38DD, but the cup size (DDD) is larger than DD. The cup size difference indicates that the breasts in a 36DDD bra will have more volume than in a 38DD bra.

21. How much does the average DDD breast weigh?

It's challenging to determine the exact weight of an average DDD breast as breast weight can vary significantly depending on factors such as breast tissue density, body composition, and overall body weight. Breast weight is highly individual, and it's best to consult with a healthcare professional for accurate information regarding breast weight or any specific concerns.

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Conclusion

In conclusion, bra size conversion plays a vital role in the world of bra shopping, particularly when dealing with different sizing systems and brands. Converting your bra size enables you to find the right fit, ensuring optimal comfort and support, whether you're shopping internationally or exploring various brands. While a universal bra size conversion chart may not exist, there are widely available conversion charts that offer approximate conversions between different sizing systems.

It is important to note that not all bra size conversions are perfectly accurate due to variations in sizing standards and manufacturing techniques. Different brands may have slight variations in fit, even within the same size category. Therefore, it is advisable to try on bras or consult the specific brand's sizing guidelines to ensure the best fit.

Moreover, it is crucial to consider other factors beyond just the numerical size when determining the right bra size. Cup shape, band width, and overall bra design all influence the fit and comfort of a bra. Understanding your body shape and personal preferences can further assist in finding the most suitable bra size.

Ultimately, bra size conversion serves as a valuable tool for navigating the diverse landscape of bras and finding the perfect fit tailored to individual needs. Remain mindful of the variations between sizing systems, refer to reliable conversion charts, and don't hesitate to try on bras or seek guidance from experts or brand-specific resources to ensure a comfortable and well-fitting bra.

Learn More About Bra Sizes

If you're interested in expanding your knowledge further on bra sizes, HauteFlair's blog provides insightful articles that cover a range of topics. Here are some recommended articles:

  • Demystifying C Cup Size: Sister Sizes, Breast Types, and Bra Sizing Explained
  • Understanding the 38C Bra Size: Equivalent Cup Sizes in US and UK, Fit Tips
  • Understanding Cup Sizes: Finding the Perfect Bra and Breast Cup Size
  • Ultimate Guide to Double D Bra Sizes: Equivalent Cup Sizes in US, UK, Fit Tips
  • Ultimate Guide to 36DD Bra Size: Equivalent Sizes, Fit, and Styling Tips
  • Understanding 34B Bra Size: Equivalent Cup Sizes, Fit Tips in US and UK
  • Bralette vs. Bra: Exploring the Key Differences and Making the Right Choice
  • The Truth About DD Bra Cup Sizes: Facts and Insights
  • Wireless Bras vs Underwire Bras: A Battle of Comfort and Support
  • Understanding the DD Cup Bra Sizes: Equivalent Cup Sizes, Fit Tips in US and UK
  • Understanding 36C Bra Cup Size: Equivalent Cup Sizes, Fit Tips, UK to US
  • 34C Bra Size: Discover the Perfect Fit for Comfort and Style
  • The Ultimate Guide to Sister Sizes: Unveiling the Secrets of Bra Sizing
  • Bra Sizing Guide: A Comprehensive Step-by-Step Measurement Tutorial For Bra Size
  • How to Measure Bra Size
  • Understanding Bra Sizes: A Comprehensive Guide

These articles will provide you with further insights into bra sizing, fit tips, and different types of bras to help you make informed decisions when it comes to finding the perfect bra for your needs.

Bra Size Calculator & Conversion Chart: Measure Bust & Convert Sizes (2024)

FAQs

What is a DD bra size equivalent to? ›

It might seem confusing, but yes a DDD is the same as an F— sometimes they are labeled differently based on the brand. After size D you can either go up to size DD which is the bra size equivalent to size E, size DDD which is equivalent to size F, and size DDDD which is equivalent to size G.

How do I convert my bra size? ›

Measure loosely around the fullest part of your bust. Subtract the band size from this measurement. Use this number to determine your cup size according to the table below. Example: if your ribcage measurement is 31, and your bust measurement is 37, your bra size is a 34C: 31+3=34, so 34 is your band size.

How do I calculate my cup size? ›

If you're still wondering: "What is my cup size?" All you need to do is a little bra math: Subtract your band size from your bust measurement to find your cup size. The difference in inches corresponds to your cup size. For example, if your bust measures 37 inches, and your band size is 34, the difference will be 3.

How does bra size compare to bust size? ›

The Difference Between Chest Size and Bra Size

While chest size is a single measurement around the fullest part of your chest, bra size is a more complex calculation involving both the band size (measurement around the ribcage) and the cup size (determined by the difference between the band size and chest size).

Is a 34DD the same as a 36D? ›

Cup size represents the volume of your bosom and is completely relative to your band size. For example, a 36D holds 710cc of breast tissue - the same as a 34DD, 32E and 30F. A 34B, on the other hand, holds 390cc of breast tissue – the same as a 32C, 30D, and 28DD.

What is the difference between D and DD and DDD? ›

What is the difference between D, DD, and DDD cup sizes? D, DD, and DDD cup sizes represent increasing differences in measurements between the band and bust. A D cup corresponds to a four-inch difference, a DD cup to a five-inch difference, and a DDD cup to a six-inch difference.

Why do you add 4 inches to your bra measurement? ›

Previously bras were made with less elastic in them and it was advised to add the four inches on to get the correct band size.

What size bust is a C cup? ›

Under the bust
C CUP32 C36 C
Bust measurement (in inches)33.9 - 34.637.8 - 38.6
Under the bust measurement (in inches)27 - 2831 - 32

How to measure bra size calculator online? ›

Calculate Bra Size

To do this, measure around the fullest part of your bust and subtract your band size from this measurement. This will give you your cup size, which you can use to find the perfect fit for you. Remember that different brands have varying sizing standards, so the same cup size can vary between brands.

How do I know my bust size without measuring? ›

You don't need to use a tape measure to find your bra size! Take one of your current best fitting bras – even if it's not very well fitting at all, and fasten the bra on whichever hook feels most comfortable. Adjust your straps to a two-finger tension, and scoop and swoop all your breast tissue into the cups.

Why does my bra get tighter as the day goes on? ›

One factor could be a lack of elasticity in the band or fabric used for the bra, causing it to stretch out over time. Another factor could be an improper fit when the bra was initially bought - if it's too small, it will gradually become more constricting as you wear it throughout the day.

What is the most ideal bust size? ›

Ideal Breast Size Based on Height

In general, taller women have wider chests so they can manage a larger breast size, whereas a C or D cup may overwhelm the frame of a smaller woman. If your breasts are too large, this may lead to functional issues such as chronic lower back pain and bra indentations.

What is considered large breasts? ›

On the basis of published data and results from this study, it is recommended that patients with a cup size>or=D or a bra size>or=18 could be categorized as having large breasts, with all other patients considered average in size.

Should you lean forward when measuring bra size? ›

Lean forward and let your breasts hang fully when measuring leaning bust. If you are not sure about RELAXED FIT or FIRM FIT, start with FIRM FIT if you want any level of lift. If the calculator is still giving you a size that puts you in disbelief, we encourage you to give it a try.

Is DD the same as H? ›

For example, if your bra size is a 40DD, your cup size is DD. In the United States cup sizes range from A to N. The cup sizes get larger as the letters go up in the alphabet. Size D is bigger than A, and H is bigger than D.

Is size F the same as DD? ›

After D you can either go up to DD(Double D) or its equivalent E, DDD(Triple D) is the next cup size which turns to be the equivalent of F.

Is 36DD the same as 38D? ›

Let's say you wear a 36DD and the band is too small but the cups fit. In order to go up to a 38 band size you need to go down a cup size. You would want to try a D in the 38 band, or a 38D. The 36DD and the 38D are the same cup size, the only difference is the 38 band is bigger around then the 36 band.

Is 38DDD the same as 40DD? ›

The cup volume of a 38DDD is equivalent to that of a 40DD, which is one cup size larger than a 40D. This means that a 38DDD bra has a larger cup size than a 40D bra, but the band size is smaller.

References

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