How to find cup size at Home

In the present era of DIY, you must have thought about how to find cup size at home? It is really important to know because the majority of folks have no idea what their bra’s letters and numbers imply. People don’t understand how those bra measurements can be used to estimate their breast capacity.

Your band size is denoted by the number. The letter represents the difference between the greatest part of your bust and your band size, which is your cup size. Because every bra differs significantly from maker to manufacturer, you now have your bra size or at least a variation of it. As a result, you may find that a different size than what was originally measured is a better fit for you. It’s all right!

Following are the simple steps that will be helpful for you to know how to find cup size at home.

Step 1: How to find band size

Of course, any bra store or department store worker can take your measures for you, but in this day and age of DIY and internet purchasing, understanding how to make your personal measures is a genuine sign of confidence. All you’ll want is some measuring tape (preferably the soft kind used for clothing) and a way of keeping track of your results. Only a few easy calculations separate you from a well-fitting bra!

You should be braless for this measurement to guarantee you’re evaluating your bosom in its most natural state, it means no padding, tying, uplifting, or compressing. Wrap the measuring tape across your ribs and just below your breast. Horizontal to the ground, the measuring tape should be.

A finger should be able to fit below the measuring tape. You can end up with a bra band that is too tight if you pull your tape measure too tight. You’ll probably want a bra band that’s a little tighter if you have a larger or heavier bust, so let’s start with correct measurements initially. A tight bra band can be particularly unpleasant if you have a smaller breast, particularly if you are slimmer and have much less cushion on your ribs since the bra band rests straight upon these bones.

See the picture below for example.

Your band size is determined by rounding the measurement to the next whole number. If the measurement is even, you may need to add four, and if the number is odd, you may need to add five, depending on the manufacturer. So, if you’re 34 inches tall, your band size is 38; if you’re 27 inches tall, your band size is 32.

Step 2: How to find your bust size

Measure the fullest area of your breast in particular. Wrap the measuring tape around your torso at nipple height, keeping the tape parallel to the ground, because that tends to be where your bust protrudes the most from your body. The picture below is an example.

If your breast tissue is larger at the bottom of your bust and is less expanded, you may need to bow at the waist to acquire an exact nipple measure. If your mobility prohibits you from standing or bending over, you can measure your bust while resting on your back.

Step 3: How to find cup size at home

Subtract your band measurement from your bust measurement (which is usually the larger number). This value corresponds to the size of your cup. You’re an AA (Double-A) cup if your bust measurement and band measurement are the same. A cup is defined by a 1-inch difference between the bust and the band; a B cup is defined by a 2-inch difference; a C cup is defined by a 3-inch difference; a D cup is defined by a 4-inch difference, and so on. Because of the 4-inch discrepancy between your bust measurement and your band measurement, you would be a D cup if your bust measurement is 37 inches and your band measurement is 33 inches.

Step 4: Gather it all

Remember how we measured the size of our band in the first step? Put that value in front of the cup size you just computed in step three. The bra size would be a 33D in the example from the previous step.

FAQs about How to find cup size at home

Question 1: How do I know my cup size?

Answer: One of the most typical methods for determining your cup size would be to deduct your band size by the bust size and then use the result to determine your cup size and to use a bra size chart.

Question 2: How do you know your cup size is ABCD?

Answer: Below is a list of standard size variations and also how they correspond to cup sizes:

You are a cup size AA if your bust size is less than 1 inch larger than your band size.

  1. The 1-inch difference equals A.
  2. A 2-inch difference equals B.
  3. A 3-inch difference equals C.
  4. A 4-inch difference equals D.
  5. A 5-inch difference equals DD.
  6. A 6-inch difference equals DDD or F.

Question 3: Which Cup size is best?

Answer: Men and women, in general, prefer larger cup sizes, specifically C, D, and DD. Moreover six out of ten women (60.4%) indicated that their ideal bust size is a C cup, compared to little more than one in two males (53.6 %). Overall, both men and women enjoy this mid-sized cup throughout Europe and the United States.

Question 4: Which cup size is the biggest?

Answer: The world’s largest cup size is 102 ZZZ, and it corresponds with Annie Hawkins-Turner, the lady with the world’s biggest boobs. 


Because our bodies change over time, it’s critical to measure your bra size on a regular basis. Re-measuring should be done every three to six months. You can get a size that seems way off from the last time you measured, depending on where you are in your cycle, the time of year, or if you’ve just given birth to a child. That’s quite typical. Depending on where they are in their cycle, many women may go up or down a cup size or two. I hope that now you know how to find cup size at home. 

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