Among the very largest cup sizes sits the G Cup size. While it’s among the rarer bra sizes, G cups can definitely be found.
In this article, we’ll discuss what exactly it means to be a G cup size, how to figure out if you are a G cup size, what G cup boobs look like in reality, and a bunch of other things related to the G cup bra size.
Important: This article talks about the G cup size as it’s measured in the US and in the EU. If you’re from the UK or Australia and you were looking for the British G cup size, check out our guide to the I cup size (the American I cup size is identical to the British and Australian G cup size).
With that being said, let’s dive in!
What Does a G Cup Size Mean?
Being a G cup size means that the difference between your bust measurement (measured at the center of your breasts where they’re the largest) and your band measurement (measured right under your boobs) is around 7 inches (~18 cm).
We’ll explain this in detail below, but if you just want to find a great G cup size bra, here are some of the best options:
As you may already know, bra sizes consist of a number and a letter. The number represents your band size, measured just beneath your breasts, while the letter indicates the difference between your bust size and band size.
To achieve the right bra size, both the number and letter components must be accurate. Fortunately, this is easier to find out than it sounds.
The first step is to measure your band size. Using a tape measure, wrap it around your rib cage directly below your breasts. Stand straight while measuring for the most precise result.
If you obtain an odd number (e.g., 37), add one to it (in this case you’ll get 38). This is because bra sizes are typically even numbers.
Do not add four inches to your band measurement. An outdated approach suggests adding 4-5 inches to your band measurement once it has been taken.
Although this was accurate years ago, it is no longer relevant. Still, this advice continues to circulate on the internet. If you come across it, ignore it entirely.
After obtaining the band size, you must also measure your bust size. You can determine this number by measuring all the way around your breasts. Instead of measuring under them, you measure right across the center of your breasts where they are the largest.
To summarize, the first step is to measure your band size, which is the measurement around your chest right under your breasts (known as the “number” component of your bra size). The second step is to measure your bust size, which is the size at the point where your breasts are the largest.
After obtaining your band and bust measurements, determining your cup size is straightforward. You simply need to subtract your band size from your bust size. If the difference is 1 inch (2.5 cm), you’re an A cup size. If it’s 2 inches (5 cm), you’re a B cup size, and so on, as shown in the table provided. Following the table, if the difference is 7 inches (18 cm), you’re a G cup size.
Here’s an example to help you understand more clearly. Suppose your band measurement is 36 inches and your bust measurement is 43 inches. Then, your bra size would be 36G because the difference between your bust size and your band size is 7 inches, which corresponds to a G cup size.
It’s important to note that the band measurement is always the “number” part of the bra size. In the examples given, we only calculated the “letter” part, which is the cup size.
More About the G Cup Size
The G cup size is considered very large. Many people find this attractive, which can boost self-confidence and self-esteem.
However, there are some downsides to consider. One potential flaw is the possible back or neck pain.
Another con is that you don’t have such a large choice of bras. This is because the G cup size is not that common. Lastly, G cup breasts can unfortunately lead to objectification and unwanted attention.
What Do G Cup Boobs Look Like (G Cup Breasts Examples)
We already discussed the definition of the G cup size. However, it is often helpful to see real-life examples of celebrities who have this cup size. There won’t be many examples since this is not a very common cup size.
It is important to note that breasts of the same cup size can look different because their band sizes can vary significantly.
This means that a woman who has a band size of 38 inches and a bust size of 45 inches, and another woman with a band size of 42 inches and a bust size of 49 inches will both wear G cup size bras. Still, these two women will look quite different.
One celebrity with G cup boobs is English media personality and model Katie Price. She’s reportedly a 32G cup size, meaning that she has a band size of 32 inches and a bust size of 39 inches.
Difference Between F and G Cup Size
The F cup size is one cup size smaller compared to the G cup size. This means that for women with the same band measurement, the bust of a woman with F cup boobs will be 1 inch (2.5 cm) smaller compared to the woman with G cup boobs.
Difference Between G and GG Cup
In US cup sizes, there’s no GG cup size. However, there is one in UK standards (identical to the J cup size in US standards). In UK cup sizes, the GG cup size is one cup size larger compared to the G cup size. This means that for women with the same band measurement, the bust of a woman with GG cup boobs will be 1 inch (2.5 cm) larger compared to the woman with G cup boobs.
G Cup Size in Inches
If we measure in inches, a G cup size means that your bust size is 7 inches larger than your band size. This means that if your band measurement is 38 inches, your bust measurement is 45 inches. And if your band measurement is 40 inches, your bust measurement is 47 inches.
G Cup Size in Cm
If we measure in centimeters, a G cup size means that your bust measurement is almost 18 cm larger than your band measurement. This means that if your band measurement is 85 cm, your bust measurement is 103 cm. And if your band size is 95 cm, your bust measurement is 113 cm.
G Cup Size Chart
G Cup Size in UK Sizes
Cup sizes in the US and the UK are identical for more common cup sizes. However, from DD boobs and larger, cup sizes start to differ.
As stated already, when the difference between the bust and the band is 7 inches, that equals G cup size in US standards (the same is true for EU standards). In the UK, this same size is referred to as the F cup size.
G Cup Size Infographic
How Big Is a G Cup?
If you’re a G cup size, it means that your bust size is 7 inches (~18 cm) larger than your band size. However, how big a G cup size is cannot be said unless you know your band size. A woman with a band size of 34 (34G) and a woman with a band size of 42 (42G) will have different breasts, even if both are a G cup.
Is a DDD the Same as a G?
No, DDD is not the same as a G cup size. While this is a common misconception, the DDD cup size is actually equal to the F cup size (in US cup standards). The G cup size is one cup size larger than the DDD cup size (F cup size), which means that people wearing a G cup size have a bust that’s one inch larger than those wearing a DDD cup size.
G cup boobs are among the largest cup sizes. Here, we discuss what a G cup size means, how G cup breasts actually look like, how different they are from other cup sizes, and many other aspects related to this cup size.
The founder, editor, and writer of most articles on Ultimate Bra Guide. An experienced bra fitting specialist turned blogger. My website Ultimate Bra Guide has been featured in relevant publications such as Glamour, Bustle, Elite Daily, Alldaychic, Everyday Feminism, and so on. Get to know me better at our about page.