Find Your Bra Size

Find Your Right Bra Size

Believe it or not, at least 85% of women wear an incorrect bra size! Most people wear a bra too large in the band, and too small in the cup. If you’re looking for a better fit, here’s how to find your true bra size.

First, we need to tell you up front, that any bra sizing system where a tape measure is involved will not be totally accurate. The reason? A lot of factors can affect your measurements;

  • the bra you’re wearing
  • the firmness of your breasts
  • the broadness of your back
  • the narrowness of your shoulders

These factors and more can give you a false bra size once you’ve measured yourself.

STEP 1: Measure for band size:

Keeping the measuring tape parallel with the ground, measure around your bra directly under your bust be sure to breathe a few times to be sure your band won’t be either too big or too small. Round all fractional measurements to the nearest whole number.  Write that number down. Ex: 35 1/2 inches would be a 36 band.

STEP 2: Measure for cup size:

Standing straight, measure at the fullest part of your bust (while wearing a non-padded bra) making sure the measuring tape is parallel with the ground and not binding. The measuring tape should be across your nipples.

Round all fractional measurements to the nearest whole number. Write that number down

STEP 3: Cup Sizes

Many women are totally unaware of the actual “Cup size alphabet”. So here it is ladies, be honest and don’t be afraid of the letter, after all it is only a letter.

A, B, C, D, DD/E, DDD/F, G, H, I, J, K, L, N.


STEP 4: *Calculate your bra size:

Take your bust size measurement (step 2) and subtract your band size (step 1), and for every inch, it is a cup size, or letter.


Bust measurement= 40inches

Band measurement= 34inches


A(inch 1), B(inch 2), C (inch 3), D (inch 4), DD/E (inch 5), DDD/F (inch 6)

Then your bra size would be a 34DDD/F

The cup size calculation starts falling apart at 4 inches larger than your band size, and if you have droopy or pendulous breasts, your measurement will not be accurate.

The best thing to do, is to come into our Mill Bay Store and see what size fits you best. Our staff is helpful and knowledgable. 


Now that you have an idea of your size, You need to know how to wear your bra properly.

The first step is to put your bra on properly.bra-hang-to-dry

1. Place your arms through the straps and position the straps on your shoulders.

2. Lean forward and let your breasts naturally fall into the cups.

3. Fasten the hook at the position that is most comfortable preferably in the first hook position (or the longest). This will allow you room to tighten the band slightly with minor weight fluctuations and allow for stretch.

4. Position and adjust the back of your bra so that it is vertical with the underwire in the front of your bra, it should sit completely level.

Then, follow our easy four-step process to find the bra that fits you right and feels fantastic.

You know your bra is fitting you properly when:
1. The back panel of the bra is level with the front, and doesn’t ride up above the clasps.

2. The cups hold the breasts fully, with no extra space and your breasts aren’t spilling over the cups, there should be a smooth transition between the cup and your breast.

3. The piece between the breasts should be tacking directly against your chest, holding your bra snugly in place. If this muddle front piece is not sitting close to or directly against your chest, you are in the incorrect bra size.

4. Adjust the straps so that they sit snugly on your shoulder, neither so tight that they pinch or mark your flesh nor so loose that they slide off the shoulder.

5. Once everything seems to be placed correctly, you may notice ‘back fat’ or ‘armpit fat’ hanging over the band of your bra. (this is actually migrated breast tissue) There is a way to train that migrated tissue back into its proper position. Take your opposite hand and slide it inside the opposite cup, reach as far back as you can along your bra and grab the fleshy pieces and drag them along your ribcage and into your cup. You may now find your breasts overflow the cups of your bra, this however is totally normal. It will be necessary to up your cup size As you drag that breast tissue back into the cups of your bra, your breasts will increase in size. Over time your ‘back fat’ will lessen and almost disappear!

It is best to be properly fit for a bra at our Mill Bay location, where our certified staff can size you professionally.

Find the perfect bra in our online catalogue or visit our Mill Bay store in person.

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