Breasts and Cup Sizes

It is often a big problem for girls and women to find out exactly what cup size they have. Is it 75B or just 75C..? What exactly is this, how can you measure it or do you really need one of those sometimes pushy saleswomen?

Measuring your breasts

find out your cup size , it is best to grab a measuring tape and start measuring . It has been shown that most women wear underwire bras, so we will assume that for now.

The underbust width

If you measure the underbust width, the number of centimeters is the first number in the cup size. You measure this by first exhaling deeply and pulling the measuring tape quite tightly around your chest, just below your breasts . In the following table you can read the first half of your cup size;

63 to 67 cm


68 to 72 cm


73 to 77 cm


78 to 82 cm


83 to 87 cm


88 to 92 cm


93 to 97 cm



The upper width

The bust is the letter in the cup sizes. You measure it by pulling the measuring tape loosely (!!) around your breasts after exhaling. Measure the number of centimeters at the point where your girth is largest. Take the difference in centimeters between your upper chest width and your lower bust width and you can read from the following table which letter is in your cup size;

10 to 12 cm


12 to 14 cm


14 to 16 cm


16 to 18 cm


18 to 20 cm


20 to 22 cm


22 to 24 cm



Reliability of the measurement

Every brand and model of bra is different. For example, the cups of one bra in cup size 75C can be much larger than the cup in another model. Therefore, always try it on before buying a bra.

Changes in cup sizes

If you are just between sizes and the cups of your bra in size 75C, for example, fit quite well, but the bra is still too tight under your breasts, you can opt for an underbust width one size larger. However, this does mean that you have to choose a smaller cup size , so 80B. These cups are the same depth, but any underwires are a bit wider.

When does a bra fit properly?

With a good bra…

  • …the breasts sit comfortably within the cup,
  • …the front of the bra lies flat against your body,
  • …the bra is firm, but not too tight so that it leaves red stripes on your body.


With a bad bra…

  • …do the straps cut into the shoulders or are they wider,
  • …the breasts partially cover the bra,
  • …the bra rides up at the back,
  • …the front of the bra has space.


Different types of bras

There are a number of different types of bras, each with their own function:

Underwired bra

Provides extra strength through a metal bracket under the breasts

T-shirt bra

It’s almost invisible under a tight shirt

Push-up bra

Has cushions, which make your bosom appear fuller

Sports bra

Provides extra support during exercise

Strapless bra

Has no straps, making it very easy to wear under a halter top

Adhesive bra

Sticks to your skin, so it doesn’t have to have straps

Balcony bra

Gives a beautiful shape to your bosom

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