Finding the right bra can be a game-changer for your daughter’s confidence and comfort, especially if she has a smaller bust. A well-fitting bra not only provides support but also helps her feel secure and at ease throughout her day. Whether she's just starting out with training bras or moving into more structured styles, the right fit matters.

To measure for a small bust bra, start by selecting soft measuring tape and taking two key measurements: the band size (just below the bust) and the bust size (around the fullest part of the chest). Subtract the band from the bust to determine cup size. This method helps ensure a proper fit when shopping for bras for small busts and avoids common sizing mistakes.

In this guide, we’ll walk you through step-by-step instructions on getting accurate measurements, understanding a girls’ bra size chart, and identifying the best types of bras for small breasts, so your daughter can feel supported, stylish, and ready for anything!

Step One: Find Measuring Tape

Using the right measuring tape is one of the most important steps to measuring your daughter’s bra size accurately. So, what is the right type of measuring tape?

Look for measuring tape that is flexible, soft, and easy to wrap around your daughter’s bust. Avoid using rulers or aluminum measuring tapes, as those can easily irritate your daughter’s skin and give you inaccurate readings. When in doubt, a tailor’s measuring tape is the way to go. 

Step Two: Measure the Band Size

The next step to figuring out your daughter’s bra is measuring her band size. This measurement is taken by wrapping the measuring tape around your daughter’s chest, just below her bust. Keep the tape comfortably wrapped around her, not too tight but not too loose.

When it comes to measuring your daughter’s band size, bear in mind that you will need to round up to the nearest even number. For example, if your daughter’s exact measurement is 29.8 inches, you would round up to thirty inches.

Step Three: Measure the Bust Size

Next, you will need to measure your daughter’s bust size. Simply wrap the measuring tape around the fullest part of your daughter’s bust. Remember, the tape should be comfortably wrapped around her, not too tight or too loose.

Step Four: Calculate Your Daughter’s Cup Size

Once you have both your band and bust measurements, you will want to subtract the band from the bust measurement. For example, you measured a bust size of thirty-two inches and a band size of twenty-nine inches. You would subtract twenty-nine from thirty-two, resulting with three as your daughter’s bust size number.

Once you have determined her bust size number, you will use it to figure out the size of your daughter’s cup. If she has a smaller bust, you can expect her to land somewhere between an AA and a B cup.

Any number below one inch equates to a double A cup, whereas one inch equates to a true A cup, and two inches equates to a B cup. This same logic follows for C, D, and all cups beyond.

Step Five: Find Her Perfect Match at Yellowberry

At Yellowberry, we offer a multitude of colors and styles to choose from. You can rest assured that your daughter will be feeling and looking her best self, day in and day out. Our top picks include our best-selling Ladybug bra, known for its full coverage and support, and our Lily bra, known for its stretch and definition. With all these options and more, you are sure to find the right bra for your daughter at Yellowberry.

Have you ever wondered what the difference is between chest size versus bra size? Check out our latest post to learn more!