Measuring Cup Size of bra

Measure around the upper part of your chest above the breasts, and below the armpits. This number should to be even. Example, if you measured 35 inches then you will need to round up by one inch, making 36 inches your band size. Write the number that you measure down on a piece of paper, and proceed.

Measure around the fullest part of your breasts while continuing to wear your bra. Then, you will need to subtract the previous (band) number from this measurement. Example, a bust measurement of 39 inches minus the 36 inch band size equals 3 inches. As notice by the following scale this would indicate a cup size C. Final Size: 36C

Differences of:
Less than 1 inch = AA
One inch = A
Two inches = B
Three inches = C
Four inches = D
Five inches = DD
Six inches = DDD/E
Seven inches = F