Bra Size Calculator

Best bra size calculator

This calculator will give you an estimate of what your bra size is by calculating your bust and band size. 

Our bra calculator will give you the international bra size results for countries like the United States, the United Kingdom, Europe, Australia, Italy, France, and Japan.


Plenty of Bra Calculator

Bust Size can't be smaller than band size
Click calculate to see bra size.
Below chart shows your estimated bra size.
Location Size Cup
USA 30 B
UK 30 B
Europe 30 B
Australia 30 B
Italy 30 B
France 30 B
Japan 30 B
This calculation result is only a guide. An expert fitting or trying on different bras to see which sizes fit work best is recommended.

How does the bra calculator work?

The bra calculator works by calculating your bust and band size. The calculator will minus your band size from your bust size and give you an estimate of your band and cup size bra.

How to use the calculator?

After you have finished taking down your body size measurements. Enter your information into the calculator and click the calculate button for your bra size result.

This calculator goes by inches and only works with USA size, so please refer to the chart below to get your country bra size.

What is a Band size?

The band size is the measurement around your rib cage and just below your breasts.
What is a Band size
What is a Band size

What is a Bust size?

The bust size is the measurement of the fullest part around the breasts. That will determine the bra cup size.
What is a Bust size
What is a Bust size?

Why Bra Calculator?

This calculator is only a starting point to help you to find your perfect size bra.

Studies have shown that over 80% of women don’t know their actual bra size. Many women have been wearing a bra that is either too big or too small for them. 

Some women don’t even know that they’re wearing the wrong size bra.

This type of wrong bra fitting has been causing uncomfortable bras on women where the bra causes a set of body pain.

Results from right fit bra:

  • Great breast support
  • Defined breast shape
  • Separated breast cleavage
  • Comfort as if you’re not wearing a bra

Effects from wrong size bra:

  • Bad posture
  • Back pain
  • Headaches
  • Heat rashes
  • Irritable bowel syndrome
  • Underwire poking
  • Band riding up
  • Uncomfortable cup

What is a bra calculator

We will be happy to hear your thoughts

Leave a reply

Plenty Of Bra
Reset Password
Shopping cart