Victoria's Secret will measure you to fit within the sizes they sell. But, use this guide to get the right fit and look great! **Just did this and my size was drastically different than it used to be! Finally found a comfortable bra that really truly fits! Bra Guru's Better Bra Campaign: Bra fitting
Bra Size Calculator - type in your measurements to get your band and cup size. Quote from the website: "Don't be alarmed if this size is different from what you are used to, most women are wearing the wrong size bra! Your recommended bra size is a great starting point to finding bras that will fit you perfectly. The best size for you may vary based on the bra brand, style or other factors."