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How Big Is a 38D Bra Cup Size?

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When it comes to bra sizes, many different measurements go into making the perfect fit. The first thing to understand is what the letters and numbers mean in bra size. For example, how big is 38D?

How Big Is 38D?

A 38D bra size means you have a band size of about 34 to 35 inches and the bust size is around 41 to 42 inches. Since you’re a D cup, the bust measures four inches more than the band measurements, and your sister sizes are 36DD(E) and 40C.

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Measuring the breast cup size means taking the difference between the chest size and the bust line measurement.

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For instance, the bustline measurement at the fullest area of the bust is 38 inches, and the chest size is 42 inches. The difference between the two is 4 inches.

If you find that a 38D is too large in the bust, you could also try a 38C or 38B bra cup size. You also can try moving up to a 38DD cup size, as DD cups are 1 inch larger than D cups.

You can consider several things to make your 38D breasts more noticeable.

For instance, tube or strapless dresses can be very effective for drawing attention to your bust line.

Backless dresses can be tricky with larger boobs, and they are a challenge to wear a bra with. You can tape your breasts if the dress is low cut, or wear a plunge bra.

If you want to go for a sexier look, wearing push-up bras for bigger boobs will give your breasts extra lift and make them appear bigger.

38D Natural Breasts

Most women who have 38D breasts tend to be happy with their breast size. Whether your 38D breasts are natural or artificial, you will still need the best support for them.

This is because apart from being heavy, large breasts tend to drop much sooner when compared to smaller breasts. While not as heavy as DD boobs, you might benefit from support bras that help with saggy breasts.

This is attributed to the weight of the breasts coupled with gravity that works together with the natural aging process. Furthermore, most women with larger breast sizes are more likely to wear the wrong bra sizes.

This can be detrimental to your health since a lot of weight is concentrated around the chest areas, and it needs additional support to guarantee comfort.

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38D Natural Breast Support

38D natural breasts have a lot of weight, so providing the necessary support to keep your breasts from sagging is very important. In addition, natural 38D breasted women can wear any style of bra they want since they will look good in it.

Here are some bras that will look good on women with 38D breasts:

Make sure they are not too tight around the band, as this will cause back pains.

For a summer time look that is more open and free, try a bralette for your size. There should be enough room for you to breathe and also move your arms freely without worrying about spilling out of the cups or straps digging into your skin.


Until you find the perfect bra size, make sure that you wear properly fitting bras each time you go out or whenever possible. This not only guarantees comfort, though, it also reduces sagging and ensures a proper breast shape.


Hi there, I’m Allena, Founder and Editor of The Better Fit. I’ve always had a passion for finding ways to help women improve various areas of their lives. I have researched and worked to create this website so women would have a place to come and be informed about an article of clothing they literally wear every day.