How to Find Your Bra Size


Fitting yourself for a bra is not very difficult, but there is a lot of misinformation about how to do it. Even if you go to a store and have a professional fit you, often they will give you the wrong size. And that sucks! The point of bras is to hold your titties in place, and if the bra is the wrong size, then it can’t do its job. What is the point of wearing an uncomfortable and sometimes painful contraption on your body all day if it can’t even do what it was designed to do? I mean really? Ladies, you deserve better!

So, because you deserve better, I have created step by step instructions for how to find your bra size. Good luck! And feel free to contact me if you have any questions.

Step 1: measure your band size.

The band carries most of the weight of your breasts, so it needs to be tight. If your band is too loose, then that weight goes onto your shoulders. That is not good! Ill-fitting bands cause back pain, shoulder pain, and encourages bad posture. So if you want to feel your healthiest and look your sexiest, get the correct band size!

  1. Find a private place with a mirror and one of those flexible tape measures used for sewing.
  2. Stand shirtless in front of the mirror and wrap the tape measure around your chest directly below your breasts. Look in the mirror and make sure the tape measure is level with the ground all the way around.
  3. Breath all the air out of your lungs, and squeeze the tape measure tight. This is your band measurement. You are almost there!
  4. Band sizes are only even numbers, so if your band measurement is an odd number, you will have to round up. It is generally suggested that you round your band size up to the next even number. I suggest that you start there, try on some bras, and if your bands feel loose, try rounding down. It is really that simple. Yay!


Step 2: measure your bust circumference.

The goal here is measure what the circumference of your bust would be if your breasts were 100% perky. Now, big breasts are heavy,  obviously. Most of us busty ladies started to see our girls sag before we left high-school, so measuring bust circumference requires some ingenuity. Here are some suggestions.

  • If you have magical, gravity defiant knockers, just measure the circumference of your chest at the largest part of your breasts. Check in the mirror to make sure the tape is level, and you’re good!
  • Wear the best fitting, and least padded bra you can find. It will lift your bosoms so that they are perky and you can get an accurate measurement. Then wrap that bust in a measuring tape.
  • Strip down so that you are totally topless, then lean over so that your breasts hang straight down. Measure as quickly as you can, or lock the door. You don’t want to explain what you are doing.


Step 3: calculate your bra size

Here is the secret to bra sizing. Each letter represents a one inch difference between the band size and the bust circumference. That’s it! There is no fancy math necessary, just simple subtraction.

Bust circumference – band size = cup size

For example: My band measurement is 33 inches but I round it up to 34. My bust circumference is 42 inches.

42 – 34 = 8

Next, we consult my handy-dandy chart! What do you know? An 8 inch difference is an H cup in North America and a G cup in Europe. Haha! See I told you my boobs were ridiculous!

bra size chart

I bet you think you’re done. WRONG!


Step 4: try on bras until you find the perfect fit

Frankly, the larger your breasts are, the less accurate the calculation is. It is better to figure out your size with trial and error. The calculation is a good place to start, but it is not the finish line. You may end up wearing different sizes in bras made by different companies, or even in different styles made by the same company. It is shitty. I’m sorry.

The most common mistake women make when fitting themselves for bras is to use a larger band size so that they can have a smaller cup size. This is bad! Don’t do it! If your band is too big, it will move instead of staying firmly. This puts a lot of weight on your shoulders and spine, and it can cause painful rubbing. Your band should never move while you are wearing your bra!

Try on bras in several cup sizes and compare how they fit. Use this checklist to avoid making a purchase you will regret.

  • The band should be level with the ground all the way around. If it is riding up in the back, your band is too big.
  • The underwires should meet between the breasts and lie flat against the sternum. They should not rub uncomfortably or poke into either the breasts or the chest.
  • The breasts should not overflow the cups or bulge out the sides.
  • The nipple should be at the center of the cup.
  • The straps should not dig into the shoulders. If this is happening, the band is to large.
  • You should be able to breath and move freely without your bra moving very much at all.

When trying on bras, you need to put them on correctly. I now it sounds dumb, but even basic things become complicated when your mammaries are  ridiculously large. Before you adjust the straps, bend over, reach your hand into the cup, and pull any fat from the armpit area into the cup. This is actually breast tissue, but if you have been wearing too small of a cup size then it was pushed up under your armpit. While you are bent over, take the opportunity to adjust your breasts so they are evenly distributed in the cups, and so the nipples are in the center. Then you can stand up and adjust the straps as necessary.

And that is is how you find your bra size! Good luck and happy hunting!




  2 comments for “How to Find Your Bra Size

  1. Amanda
    November 26, 2014 at 2:01 am

    Good info to have. ^-^

  2. December 20, 2015 at 7:50 pm

    This design is steller! You obviously know how to keep a reader entertained. Between your wit and your videos, I was almost moved to start my own blog (well, almost…HaHa!) Fantastic job. I really loved what you had to say, and more than that, how you presented it. Too cool!|

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