A bra fitting is a private session between you and a woman who has been measuring women for bras as a full time profession for awhile (5, 10, 15, 20 years or more). With only your bra on, a tape measure is wrapped around your rib cage (to get the band size) and then wrapped around the largest part of your breast (to get the cup size). If the band size is an odd number, round up to an even number.
There are no right and wrong ways to figuring out your bra size during a professional fitting. Different opinions exist as well as different methods. No matter how the professional fitter comes up with the numbers, you will still have to try on many styles and brands. How the bra fits will determine your final size.
For complete instructions on how to measure for your band and cup size, turn to page 5 of — The Ultimate Bra Fitting Guide.
P.S…….I also cover the different methods used to calculate the band size.