How do I know what size bra I wear? Find the perfect fit with these tips!

Wearing the right size of bra is very important for your comfort and health. However, finding the perfect fit can be challenging, especially if you’re new to buying bras, or if your body has gone through some changes recently, such as weight gain or loss, pregnancy, or breastfeeding. In this article, we’ll walk you through the steps to measure your bra size, and share some tips on how to choose the right type of bra for your body and style. Let’s dive in!

How to measure your bra size

The first step to finding the right bra size is to measure yourself. Here’s how:

1. Measure your underbust

Wrap a measuring tape around your ribcage, just below your bust. Make sure the tape is snug but not too tight. Round the measurement to the nearest inch, and add 4 or 5 inches if it’s an even number, or 5 or 6 if it’s an odd number. That’s your band size.

2. Measure your overbust

Wrap the measuring tape around the fullest part of your bust, making sure it’s parallel to the floor. Round the measurement to the nearest inch. Subtract your band measurement from your bust measurement, and use the difference to determine your cup size. Here’s a chart to help you:

Difference (inches) Cup size
0-0.5 AA
0.5-1 A
1-2 B
2-3 C
3-4 D
4-5 DD
5-6 DDD/E
6-7 DDDD/F
7-8 GG
8-9 HH
9-10 J

Tips for choosing the right bra

1. Consider your breast shape

Not all bras are created equal, and not all bras will fit you the same way. Your breast shape will determine what type of bra will best suit your needs. Here are some common breast shapes and the type of bras that work well for them:

  • Round: You can wear almost any type of bra, but unlined bras and push-up bras will enhance your shape.
  • Asymmetric: This means that one breast is larger or differently shaped than the other. You should choose a bra that fits the bigger breast, and use padding or inserts in the other side to even out the shape.
  • Tubular: This is when your breasts are shaped like tubes or cylinders, with little to no tissue at the top. You should choose a bra with a demi-cup or balconette style to create the illusion of fuller breasts.
  • Bell-shaped: This means that your breasts are heavier on the bottom than on the top. You should choose a full-coverage bra with underwire and wide straps for support.

2. Consider your outfit

The type of bra you wear should also depend on the type of outfit you’re wearing. Here are some guidelines:

  • T-shirts: Choose a seamless bra or a bra with molded cups to avoid visible lines.
  • Tank tops: Choose a bra with adjustable or convertible straps that can be worn in different ways, such as criss-cross or halter.
  • Strapless dresses: Choose a strapless bra with a wide band and strong grip to stay in place.
  • Sportswear: Choose a sports bra with high support and compression to prevent bouncing and discomfort.

3. Try before you buy

Don’t be tempted to buy bras online without trying them on first. Every brand and even every style within a brand can fit differently, so it’s important to go to a store and try on different sizes and styles until you find the perfect fit. Make sure to wear a tight t-shirt or a light sweater to see how the bra will look under clothes. Don’t forget to check for signs of a good fit, such as:

  • The band should be snug but not too tight, and should sit straight across your back.
  • The cups should fully enclose your breasts, without gaps or overflow.
  • The straps should be adjusted to fit snugly on your shoulders, without digging in or falling off.
  • The underwire, if present, should sit flat against your ribcage, without poking or rubbing.

Common misconceptions about bra sizes

1. A size is just a number

Many women think that bra sizes are standardized across brands and countries, but the truth is that this is not the case. A size 36C in one brand may fit differently than a size 36C in another brand, due to variations in cup shape, band stretchiness, and padding. Therefore, it’s important to try on different sizes and brands to find your perfect fit.

2. A bra should be uncomfortable

Many women think that bras have to be uncomfortable in order to be supportive. However, this is not true. A well-fitted bra should provide enough support and lift without causing pain, irritation, or red marks on your skin. If your bra is hurting you, it’s a sign that it doesn’t fit you properly.

3. Bra sizes don’t change over time

Many women think that their bra size stays the same throughout their lives, but this is also not true. Your body can undergo various changes over time, such as weight fluctuations, aging, hormonal changes, and pregnancy, that can affect your breast shape and size. Therefore, it’s important to measure yourself regularly and adjust your bra size accordingly.


Now that you know how to measure your bra size and choose the right type of bra for your body and outfit, you’re ready to start shopping. Remember, the perfect bra is out there, and it’s worth the effort to find it. Don’t settle for discomfort, pain, or sagging breasts. Take care of yourself and enjoy the benefits of a well-fitted bra.

Frequently Asked Questions

  • How often should I measure my bra size? You should measure your bra size every 6 months or whenever you notice a change in your body or bra fit.
  • What should I do if my bra size is not available in a store? You can try a similar size, sister size, or order online from a brand that offers a wider range of sizes.
  • What should I do if I’m in between sizes? You can try a different style, brand, or adjust the straps and band to achieve a better fit.
  • What should I do if my bra cup overflows? You can try a larger cup size or a style with more coverage, such as a full-cup or a minimizer bra.
  • What should I do if I’m not sure about my breast shape? You can use a mirror, a friend, or a bra fitter to help you determine your breast shape and type.



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