30A Bra Size – All you need to know

30A Bra Size in lace bra
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Are you looking for the perfect bra for small busts? Most people don’t know that besides the smallest size standard bra of 32A, lingerie brands also create smaller ones – 30A bra size. 

They are made for women who have smaller figures. 

We know how challenging it can be to look for 30A bras. But it’s important to wear the right size to avoid any discomfort. 

This article will discuss everything you need to know about the 30A bra size. We’ll tell you where to find them and how to pick one with the best fit.

What Is A 30A Bra Size?

A 30A size is a bra that has the following measurement: 30 inches for the band size and 31 inches for the bust. The cup size A is derived from the 1-inch difference of the band and bust areas. 

Is 30A The Smallest Bra Size?

30A is one of the smallest bra sizes. However, there are sizes much smaller than 30A. 

One of which is 30AA, where the cup size is smaller with no inch difference between the band and bust. 

There is also a 26A with 22 to 24 inches bust and band size and 28A with 24 to 26 inches bust and band sizes. 

Where Can I Find a 30A Bra Size?

30A bra sizes are rare and only a few brands manufacture them. 

Some of the companies where you can purchase 30A bras are Lula Lu Petite, The Little Bra Company, Huit, and Affinitas. 

You can also find different brands of 30A bra sizes on Amazon. Here are some Amazon stores where you can try:

  • ToBeInStyle’s Classic 6 pack of 30a Bra
  • Amazon Essentials Women’s Classic Underwire T-Shirt Bra in 30a
  • Coastal Rose Women’s Strappy Sports Bra Medium Impact Workout Longline Running Crossback Yoga Tops fits 30a
  • Warner’s Women’s Easy Does It No Dig Wire-Free Bra XS for 30a

What Are The International Conversions Of 30A?

Many women have a hard time finding bras that’ll fit them because their size in one store can be different in the next lingerie shop

This is the reason why sister bra sizes exist. They offer an alternative size that you can try if your current size doesn’t fit.

There are many reasons why bra sizes differ. 

  • It can be because of the manufacturing country. For example, Australian-manufactured bras are measured differently from those made in the US, Europe, etc. So you need to have an appropriate 30A bra size conversion table you can rely on.
  • Different bra styles affect the bra size, especially those you need to perfectly cup your breasts. 
  • Various brands supply bras in different sizes. What your Victoria’s Secret 30A bra size equivalent to Bench’s may not be the same.

Check out the following list for 30A bra sister sizes below: 


Are You Worried About Your Small Bra Size? 

Having a 30A bra size is nothing to worry about! 

There are many people who share the same bra size as you. Develop your confidence and know that even if the regular retail stores don’t carry your size, you’re not alone!

If you’re not convinced, get to know some of the 30A bra size celebrities and models in the following list: 

Josephine Skriver

Josephine Skriver is a Danish model with over 6 million followers on Instagram. 

She’s a famous personality that has appeared in many advertisement campaigns for Dior, Armani Exchange, and Gucci, among others. 

Romee Strijd 

A Dutch model and previously a Victoria’s Secret Angel, Romee Strijd has worked for many high-end brands such as Alexander McQueen and Michael Kors. 

She has also appeared on various magazines like Elle and Vogue.

Kristen Connolly

Kristen Connolly is an American actress known for her roles in House of Cards and The Cabin in the Woods. 

She has appeared in many films and television series. 

Hayley Williams

Paramore’s lead vocalist, Hayley Williams, is also a songwriter and keyboardist. She has been releasing music with her band and recently debuted as a solo artist with her single Simmer last January. 

Nicole Gale Anderson

Another American actress known for her role in the Series Jonas L.A. as Macy Misa, Nicole Gale Anderson has also participated in many other films, series, and even music videos. 

Rose Byrne

Australian actress Rose Byrne appeared in Dallas Doll and Star Wars: Episode II – Attack of the Clones. 

She has been named as one of the most beautiful women in the world, ranking 9th and 16th in Australian FHM’s “Sexiest Women in the World.”

What Are The Type Of Bras 30As Can Wear?

There is no limit to what type of bras you can wear, even if you’re a size 30A. It’s up to you to choose what works best for you and your needs. 

They are as follows:

Padded Bras

These are made with padded cups and have pockets to insert these enhancements. 

If you want to maintain the shape of your padded bras, it’s best to hand-wash them with mild detergent soap. 

First, soak your bra in a basin of cold water for about 20 minutes and rinse it with clean water. 

Next, use your palms to squeeze out excess detergent and water absorbed by the pads, and then hang them.

T-Shirt Bras

These are produced with smooth and seamless cups that don’t leave visible lines in tight hugging outfits. 

T-Shirt bras have a molded cup made of one-piece fabric that keeps its shape.

However, sometimes, the mold of the bra doesn’t fit. So, it’s good to buy T-Shirt bras that are padded to have better coverage. 

It’s still up to you to decide what you like better.

Push-Up Bras

These lift the breasts to show off some cleavage. 

This type of bra works best to enhance small breasts. 

It has fitted wires and padding that will lift the breast upward towards the center and gives an illusion of bigger breasts.

Underwired Bras 

Underwired bras include a rigid material. 

These materials can be metal, plastic, or resin fitted inside the bra that helps support your breasts. 

Women with bigger breasts prefer underwired bras to lessen their back pain. 

Wireless Bras or Soft Cup Bras 

They are made entirely of fabric and don’t contain any rigid material. Women with smaller breasts prefer this type of bra since they offer the most comfort.


Bralettes are a bra style that looks like a bra and a crop top. 

You can wear them as an outwear top if you want quick outfits where you don’t have to wear tops over undergarments. 

Strapless Bras

This type of bra works well with bandeau dresses and tube tops where bra straps can easily be seen and ruin your outfit.

Sports Bras

Women wear special bras for workouts and other activities that require physical strain to fully support their chests. 

Sports bras usually come in small, medium, large, and extra-large sizes. 

You can choose the extra small ranges for bra size, starting with 26A to about 32B.

Front Open Bras

Front open bras come with a hook in front. 

It has a creative back design with a combination of laces and different fabrics. 

If you’re tired of hooks on the back, this bra is perfect for you.

Built-In Bras

Some of the clothes sold in shops have a built-in bra for convenience. 

It’s great to wear at home to feel comfortable all day long.

There are more bra types that you can choose from, but these are the most popularly used worldwide. 

Always make sure to find the right size of bra to avoid injuries and health problems such as: 

  • Breast pain
  • Nipple pain
  • Breast skin damage
  • Neck, back, and shoulder pain
  • Bad posture
  • Skin abrasions
  • Unexplained headaches

How To Know Your Bra Size

Learning what your correct size is will help you avoid ill-fitting bras and health problems. 

If you still don’t know what your bra size is, you can take a tape measure and follow the steps below:

  1. Measure your band size by wrapping the tape around your torso, directly under your bust where a bra band would sit. Round it to the nearest whole number. 

Add four inches for even numbers, and add five for odd numbers. For example, if you measured 28 inches, then your band size is (28 + 4) 32. If you measured 29 inches, your band size is (29 + 5) 34.

  1. Get your bust size by loosely circling the tape to the fullest part of your chest. This part is usually the nipple area. Round to the nearest whole number.
  2. Calculate your cup size by subtracting your calculated band size from your bust measurement. Then, refer to the bra cup size below:
Cup SizeBand and Bust Size Difference (In Inches)
  1. Write down the size you’ve calculated. You can refer to it when you’re shopping for your bras online and in physical stores. Some shops allow bra fitting so customers can be sure that it’s the perfect size for them. 
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