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Find Your Bra Size

Are you wearing the right size?

Almost 8 in 10 women are wearing the wrong size- you may be one of them. Why? Your body changes over time, and your fit will change year to year as you lose or gain weight, exercise more or less, and so on. If you are experiencing discomfort, spillage over your cups or back strap, tight straps, or a gap between your cups, you are most likely wearing the wrong size.

When measuring to determine your bra size you should, if possible, wear your most comfortable underwire bra (not padded or push-up and is not a minimizer) You should remain in a standing position, keep your back and shoulders comfortably straight (don't hold your breath or push your chest out). Be relaxed. It can be difficult to measure yourself so you may have to ask a friend to help you, this will enable you to stand in the perfect position for measuring and allow you to keep your arms down by your sides.

Our fit guide can provide you with a good starting point. If you're not sure what size you wear, or fall between two sizes, you may want to try several sizes and styles as a starting point.


Measure under your arms, high on your back, across the top of your chest. If this measurement is an even number, this is your band size. If an odd number, add 1" to determine your band size.


Measure loosely around the fullest part of your bust. Next, subtract your band measurement from your bust measurement; each inch represents a cup size. For example: if your band measurement is 34" and your bust measurement is 36", the difference between these measurements is two inches, and you'd wear a B-cup.  Therefore, you should start with a 34B Bra.

See below chart for your Cup Size:

(Bust − Band)
US Cup Size
Less than 1" AA
1" A
2" B
3" C
4" D
5" DD or E
6" DDD or F
7" DDDD or  G
8" DDDDD or H
9" DDDDDD or I
10" J
11" K
12" L
13" M
14" N

Bra Size Comparison:

US Cup Sizes European UK
J   GG
K   H
L   HH
M   J
N   JJ

Hints for a perfect fitting Bra:

Try these tips and tests to see if your bra is flattering you as best it should.

  • Now that you've found your size, test your fit. Take the opposite hand from the side you are adjusting and gently bring the breast tissue from the back to the front. This movement will help you settle your breasts correctly into the cups. It should feel good.
  • A great fitting bra should not dig, pull, poke or otherwise cause discomfort. If it does, it is not the right bra (or size) for you. Make sure it feels comfortable when you sit down and move around.
  • It should look good. Do not settle for wrinkles, if you see extra fabric or wrinkly, baggy cups, the cup size is too big. Try sizing down. Take a look at the front of the bra. There should not be any breast tissue spillage, puddling, or falling out of the bottom of the cups. If there is, your cup size is too small. Try sizing up for a flattering, more natural looking fit.
  • Straps should not work too hard - Your bra's support comes from the band, not the straps. So be sure that you're wearing the correct band size. Too big, and your straps will end up taking the weight, which will cause them to put pressure on your shoulders and dig in.
  • Is your band straight ? Look in the mirror from the side. Your band should be at the same level all the way around. If it is riding up in back, it's probably too big. Try sizing down a band size or tightening your band.
  • Mind the gap. The center front of your bra should lie flat against the breastbone. It should not lie on top of any breast tissue. If there's a large gap, you may need to go up a cup size.
  • How tight is right? Your band should feel firm and secure, but you should also be able to slip two fingers beneath the band in back, and one in the center in front. If you cannot you may need to loosen your band a bit, or go up a size.
  • Underwire Bras should not dig. They should lie flat at the front against your ribcage. If you feel your underwire digging into any breast tissue, you should try a larger cup size or a different style.

  • Bras stretch over time. Be sure you're wearing your bra on the loosest hook. Your bras can stretch with washing and wear, so when you buy a new bra, it's best to ensure it fits properly on a loose hook, so you can tighten it as needed.

  • How to know when you've found a perfect fit ? Your breasts will feel like they are "sitting" in the cups, you will not feel any underwire pinching and your bra will feel comfortable and supportive. You should not have to settle for a so-so fit. Sometimes you will have to go up a cup size or two. Don't let it concern you – sizes do vary among brands. Finding the perfect bra takes time and patience, but the way you will look and feel once you have found it will be worth the  effort.


Check back in six months or so. You should re-evaluate your bras regularly to be sure they are fitting you the way they should because a woman's body does change over time, and bras stretch and lose shape with repeated wear and washing. It may be time to stock-up again, soon.



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