Q:

How do you calculate your bra size?

A:

Quick Answer

Women can calculate their bra size by visiting a professional bra fitter or by measuring around the area directly under the breasts and the fullest part of the chest. The calculations needed to come up with an accurate bra size are simple addition.

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How do you calculate your bra size?
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Full Answer

Begin by putting on an unpadded bra and getting a measuring tape.

  1. Measure around the band
  2. Measure around the bottom of the bra band, directly under the bust. Make sure the measuring tape is snug.

  3. Calculate the size
  4. Round the size to the nearest whole number. If the measurement is even, add 4 inches. If the measurement is odd, add 5 inches. For example, if the measurement is 36 inches, the band size is 40.

  5. Measure the bust
  6. Measure the fullest part of the bust, at nipple level. Round to the nearest whole number.

  7. Calculate cup size
  8. To calculate cup size, subtract the band size from the bust size. For instance, if the bust size is 37 inches and the band size is 34 inches, the result is 3 inches. This number can then be used to determine the letter with the help of the rules below. In this example, the size would be a 34C.

  • If the band size and cup size are the same, the bra size is AA.
  • A difference of 1 inch is an A.
  • A difference of 2 inches is a B
  • A difference of 3 inches is a C
  • A difference of 4 inches is a D
  • A difference of 5 inches is a DD
  • A difference of 6 inches is a DDD or F
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