Figuring out the correct size can be tricky unless you do your homework first. This guide will help you measure yourself correctly to determine the size you will need chest size and cup size. This will be important when buying a bra as well as other clothing that uses bra or cup measurements, such as bathing suits. Of course, trying on bras is always important, since different brands and styles fit differently. This service is free, and having the measurements done by a professional will make sure that your bra fits correctly.
The Undercover Man's Guide to Determining a Woman's Bra Size - Workman Publishing
How many of you women were early breast developers? Girls, just measure them without adding inches and confusing yourself. I have worn the same size for years and the bra doesn't have any plastic or rubber across the bottom that you sometimes find on strapless bras. I'm not really sure what could have caused it but it's sure sore. The underbust measurement is the band size rounded to the nearest whole number. There is absolutely no point to measuring above the bust. The number of inches the bust is larger than the underbust is the cup size.