Your breasts should get a good crutch.
Bra cup size selection and not appropriate, not only distort the shape of the breast, but also lead to other health problems, including disorders of the spine.Perform two measurements using a tape measure with inch size, and wear a bra without padding when performing measurements to get the size that actually fits.
Size bust
Measure with a tape measure wrapped right at the bottom of the breast. If the outcome measure is an even number, add 4. If it falls on an odd number, add 5. This was done considering the chest will swell if we breathe. Thus, such as the size of the circumference of your chest is 32 inches, then the circumference of your bra size is 36 (32 +4), and if the size of the circumference of your chest is 27 inches, then your bra size is 33 (27 +5).Breast circumference size
Wrap a tape measure right in the middle of your breasts, the nipple is right. Whatever the number, rounded to an even number. Then calculate the difference between this number by the size of the circumference of your chest. The result was a response to the difference in the size of your cup.Then, check the difference with the correct cup size.
Cup A: 1 inch
Cup B: 2 inches
Cup C: 3 inches
Cup D: 4 inches
DD cup: 5 inches
DDD cup: 6 inches
For example, the size of your bust circumference is 34 inches, and the circumference of your chest size is 31 inches, then the cup size is 34 minus 31, which is 3 inches. Means your cup size is a C.
Source:Ghiboo.com