This is what to do: Put on a bra (preferably smooth) that fits well without pressing the breasts together. With a flexible tape measure, take the size around, and then under the bust.
Difference in centimeters between bottom and top of the bust determines the cup size.
Measurment in centimeters (68-112):
around the body under the bust
If the difference more than 1-2 cm more or less, then select the closest size.
Your bra size is:
|Girdle-size||Your size is|