Home>Buying Guides>How To Measure Teenager Bra Size

How To Measure Teenager Bra Size How To Measure Teenager Bra Size

Buying Guides

How To Measure Teenager Bra Size

Written by: Amalee Ealy

Find out how to accurately measure bra size for teenagers with our step-by-step guide. Perfect for parents looking to buy the right fit for their kids.

(Many of the links in this article redirect to a specific reviewed product. Your purchase of these products through affiliate links helps to generate commission for Under-tec.com, at no extra cost. Learn more)

Table of Contents


Welcome to the world of teenage bra fitting! As a parent or guardian, you may find yourself facing the challenge of helping your teenager find the perfect bra. Understanding their size and ensuring a proper fit is essential for their comfort and overall well-being.

During the teenage years, the body goes through numerous changes, including the development of breasts. This period can sometimes be confusing and overwhelming, both for the teenager and the adult guiding them through this transition. That’s why knowing how to measure and find the right bra size is crucial.

In this article, we will take you through the process of measuring and fitting a teenage bra and provide useful tips to ensure an accurate and comfortable fit. We will also discuss the various bra styles available for teenagers and common mistakes to avoid during the fitting process.

It’s important to note that every teenager’s body is unique, and there is no one-size-fits-all approach when it comes to bra sizing. However, with the right knowledge and tools, you can improve the chances of finding a bra that offers the support and comfort your teenager needs.

So, let’s dive in and discover how to measure your teenager’s bra size and make their shopping experience a breeze!


Understanding Teenage Bra Size

Understanding teenage bra size is the foundation for finding the perfect fit. During puberty, the breasts undergo significant growth and development, making it essential to measure and determine the correct size. But what exactly do the numbers and letters in bra sizes mean?

Bra sizes are typically represented with a combination of numbers and letters. The number refers to the band size, which is the measurement around the chest just under the breasts, while the letter represents the cup size, which indicates the volume of the breasts.

Teenage bra sizes are usually smaller compared to adult sizes, as the body is still maturing. Common band sizes for teenagers range from 28 to 36, while cup sizes can range from AA to D and beyond. However, keep in mind that every teenager is unique, and their bra size can vary.

It’s important to remember that bra sizes are not static and can change over time as the body continues to develop. Regularly measuring and checking their bra size will ensure that your teenager always has a well-fitting and comfortable bra.

During the teenage years, breast shapes can also differ. Some teenagers may have fuller breasts, while others may have a more shallow or petite shape. It’s crucial to consider these nuances when selecting bras to provide both support and comfort.

Now that we have a basic understanding of teenage bra sizes, it’s time to gather the necessary tools and materials to begin the measuring process. In the next section, we will explore the essential items you’ll need to accurately measure your teenager’s bra size.


Measuring Tools and Materials

Before you begin measuring your teenager for a bra, it’s important to gather the necessary tools and materials to ensure an accurate fit. Here are the items you’ll need:

  1. A flexible measuring tape: This will be used to measure the band size and the bust size.
  2. A mirror: A mirror will allow your teenager to see themselves while trying on different bras and checking the fit.
  3. A pen and paper: Keeping track of the measurements and the bras your teenager tries on can be helpful when selecting the right size.
  4. A variety of bras: Have an assortment of bras in different sizes and styles to try on and determine the best fit.
  5. Comfortable clothing: Make sure your teenager is wearing a comfortable shirt or blouse that can easily be removed for trying on different bras.

Having these tools and materials ready will help streamline the measuring and fitting process, making it easier for both you and your teenager.

Additionally, it’s crucial to create a comfortable and supportive environment while measuring and fitting bras. Ensure privacy and encourage open communication throughout the process. This will help your teenager feel more at ease and empowered to express their preferences and any concerns they might have.

In the next section, we will walk you through the step-by-step process of determining your teenager’s band size. This is the first and most crucial step towards finding the perfect fitting bra.


Step 1: Determining the Band Size

When it comes to finding the right bra fit for your teenager, determining the band size is the first step. The band size refers to the measurement around the chest just under the breasts. Here’s how you can measure your teenager’s band size accurately:

  1. Have your teenager remove their shirt and wear a well-fitting, non-padded bra or no bra at all for accurate measurements.
  2. Take the flexible measuring tape and wrap it around the chest, ensuring it is parallel to the ground. The tape should rest snugly against the skin but not squeeze or dig in. Make sure the tape is straight across the back and not slanted.
  3. Take note of the measurement in inches and round it to the nearest whole number. This will be the band size measurement.

Keep in mind that the band size should feel snug but not overly tight. It should provide a supportive base for your teenager’s breasts.

If the measurement falls between sizes, it is generally recommended to round up to the nearest even number. For example, if the measurement is 31 inches, round up to 32 inches for the band size.

Once you have determined the band size, you can move on to the next step – calculating the cup size. This will help you find the right combination of band and cup size for your teenager’s bras.

In the next section, we will guide you through the process of calculating the cup size to complete the bra fitting process.


Step 2: Calculating the Cup Size

After determining the band size, the next step in finding the perfect bra fit for your teenager is to calculate the cup size. The cup size refers to the volume or the size of the breasts. Here’s how you can calculate the cup size:

  1. Ensure your teenager is still wearing the well-fitting, non-padded bra or no bra at all to get accurate measurements.
  2. Measure the fullest part of the bust by wrapping the measuring tape around the chest, over the nipples, and across the shoulder blades. Make sure the measuring tape is straight and not too tight.
  3. Take note of this measurement in inches.
  4. Subtract the band size measurement (Step 1) from the bust measurement to find the difference.
  5. Consult a bra size chart or use the following guide to determine the cup size based on the difference:
  • If the difference is less than 1 inch, the cup size is AA.
  • If the difference is 1 inch, the cup size is A.
  • If the difference is 2 inches, the cup size is B.
  • If the difference is 3 inches, the cup size is C.
  • If the difference is 4 inches, the cup size is D.

It’s important to note that cup sizes can vary among different bra brands and styles. So, it’s always a good idea to have your teenager try on different bras to determine the best cup size for them.

With the band size and cup size determined, you can now move on to the next step – trying on different bras. This will help you find the right combination of band and cup size for your teenager’s bras.

In the next section, we will provide some tips for trying on different bras and ensuring a proper fit.


Step 3: Trying on Different Bras

Once you have determined the band size and calculated the cup size, the next step in finding the perfect bra fit for your teenager is trying on different bras. Trying on bras allows you to assess the comfort, support, and overall fit of each bra style. Here’s how you can navigate this step:

  1. Choose a variety of bras in your teenager’s determined band size and cup size. It’s a good idea to start with basic styles like t-shirt bras or wireless bras for everyday wear.
  2. Encourage your teenager to try on each bra, adjusting the straps and fastening the hooks in the back. Make sure they scoop their breasts into the cups to ensure proper positioning.
  3. Pay attention to how the bra feels. It should fit snugly around the band, but not be overly tight, and the cups should contain the breasts without any spillage or gaping.
  4. Check for proper underwire placement. The underwire should follow the natural curve of the breasts without poking or digging into the skin.
  5. Have your teenager do some movements, such as raising their arms, bending over, and stretching. The bra should stay in place, supporting the breasts without any discomfort or shifting.

Remember that finding the right bra can take time and patience. It’s normal for your teenager to try on multiple bras before finding the perfect fit. Don’t hesitate to explore different brands, styles, or even consult with a professional bra fitter if needed.

Proper bra fitting is an ongoing process, especially during the teenage years when the body is still changing. It’s a good idea to regularly check and measure your teenager’s bra size to ensure they always have bras that fit comfortably and provide adequate support.

Now that we have covered the steps for measuring and trying on bras, let’s move on to some essential tips for proper bra fitting.


Tips for Proper Bra Fitting

Proper bra fitting is essential for comfort, support, and overall well-being. Here are some tips to ensure your teenager gets the best possible fit:

  1. Encourage your teenager to try on various bra styles and brands to find what works best for their body shape and personal preferences.
  2. Pay attention to the band size. It should feel snug but not constricting. If it rides up at the back, it’s too loose. If it feels too tight, try going up a band size.
  3. The center gore, the piece of fabric between the cups, should lay flat against the chest. If it doesn’t, the cup size may be too small.
  4. Make sure the straps are adjusted properly. They should stay in place without digging into the shoulders or falling off. Adjusting the straps can also help with lift and support.
  5. Try different cup sizes within the same band size. A slightly larger or smaller cup size can make a significant difference in the fit and comfort of the bra.
  6. Consider the fabric and construction of the bra. For everyday wear, opt for smooth and comfortable materials without any scratchy or irritating elements.
  7. Ask for assistance if needed. If you’re unsure about the fit or need advice, consult with a professional bra fitter or lingerie specialist who can provide expert guidance.
  8. Remember that bra sizing is not a fixed measurement. It can change over time as the body continues to develop. Regularly reassessing and measuring your teenager’s bra size will ensure they always have the right fit.
  9. Lastly, listen to your teenager’s feedback. They know their body best and can provide valuable insights into how a bra feels and fits.

By following these tips, you can help your teenager find bras that not only fit well, but also make them feel comfortable and confident in their daily activities.

Next, we will explore different bra styles suitable for teenagers.


Understanding Bra Styles for Teenagers

When it comes to choosing the right bra for your teenager, understanding the different bra styles available is key. Here are some popular bra styles suitable for teenagers:

  1. T-shirt Bra: T-shirt bras are seamless and offer a smooth silhouette under fitted tops. They provide a natural shape and are a great choice for everyday wear.
  2. Sports Bra: Sports bras are designed to provide maximum support and minimize breast movement during physical activities. They are essential for sports, workouts, and other high-impact activities.
  3. Bralette: Bralettes are soft, wireless bras that provide light support and comfort. They come in various styles and are perfect for lounging, casual wear, or for teenagers who prefer a more relaxed fit.
  4. Wireless Bra: Wireless bras offer comfort and gentle support without the use of underwires. They are an excellent option for teenagers who prioritize comfort over enhanced lift and shaping.
  5. Convertible Bra: Convertible bras have detachable straps, allowing them to be worn in various ways. They can be adjusted to work with different outfits, including strapless or one-shoulder styles.
  6. Push-up Bra: Push-up bras are designed to enhance the bust and create cleavage. They are suitable for teenagers looking for additional lift and a more defined shape.
  7. Balconette Bra: Balconette bras have a lower cut, lifting the breasts and creating a flattering, rounded shape. They are ideal for teenagers with broader shoulders or those who prefer a more open neckline.

Each bra style offers unique features and benefits, and it’s important to consider your teenager’s needs and preferences when selecting the right style. Encourage your teenager to try on different styles to determine which ones they find most comfortable and supportive.

Now that we understand the various bra styles available, let’s explore some common mistakes to avoid during the bra fitting process.


Common Mistakes to Avoid

When it comes to bra fitting for teenagers, there are some common mistakes that should be avoided. By being aware of these mistakes, you can ensure a more accurate and comfortable fit. Here are some pitfalls to watch out for:

  1. Skipping the Measurement Process: One of the biggest mistakes is skipping the measuring process altogether. Guessing or assuming a bra size can lead to an improper fit and discomfort. Always take the time to measure your teenager for an accurate size.
  2. Ignoring Proper Band Size: Choosing the wrong band size is a common mistake. Some may opt for a looser band, thinking it’s more comfortable, while others may choose a band that is too tight. It’s important to find the right balance – a band that feels snug but not restrictive.
  3. Not Considering Cup Size: Neglecting the cup size can result in bras that don’t offer proper support or shape. Ensure that the cups fully encapsulate the breasts without any spillage or gaps.
  4. Overlooking Adjustments: Many bras come with adjustable straps, hooks, and even removable padding. Ignoring these features can affect the overall fit and comfort. Take the time to adjust the bra straps properly and utilize other adjustable components as needed.
  5. Being Influenced by Fashion Trends: While it’s tempting to follow the latest fashion trends in lingerie, it’s essential to prioritize comfort and proper fit over style. Encourage your teenager to choose bras that offer the right support rather than solely focusing on aesthetics.
  6. Not Trying on Different Styles: Each bra style fits differently, and what works for one teenager may not work for another. Avoid sticking to just one style and encourage your teenager to try on a variety of bras to find what works best for their body shape and preferences.
  7. Not Reassessing Size Regularly: Teenagers’ bodies are constantly changing, so it’s crucial to reassess their bra size periodically. Ignoring size fluctuations can lead to uncomfortable and ill-fitting bras.

By avoiding these common pitfalls, you can help your teenager find bras that provide proper support, comfort, and confidence in their everyday lives.

Now that we’ve covered the common mistakes, let’s wrap up our discussion.



Finding the perfect bra fit for your teenager is an important step in their journey towards comfort, confidence, and self-expression. By understanding their size, using the right measuring tools, and following the steps we’ve discussed, you can ensure a proper fit and enhance their overall well-being.

Remember, bra sizing is not a one-time task. As teenagers’ bodies continue to develop, their bra size may change. Regularly measuring and reassessing their size is crucial in maintaining comfort and support.

Additionally, keep in mind that every teenager is unique, and finding the right bra may require trying on different styles and brands. Encourage your teenager to explore and experiment with different options to find what works best for them.

Proper bra fitting goes beyond just the numbers and letters – it’s about understanding and catering to your teenager’s individual needs and preferences. Create a supportive and comfortable environment throughout the process, allowing open communication and embracing their feedback.

By avoiding common mistakes and staying attentive to their needs, you can help your teenager find bras that not only fit well but also make them feel confident and comfortable in their own skin.

So, armed with the knowledge and tips provided in this article, go forth and empower your teenager with the gift of a well-fitting bra!

Was this page helpful?

Related Post