• A - Bust: Measure over the fullest part of your bust.
  
  
• B - Waist: Measure around your natural waistline 1-2 inches ABOVE your belly button, which is the SMALLEST point on your waistline; keep the measuring tape snug but not tight.
  
  
• C - Hips: Measure around the fullest part of your hips, 8" below your waist (Petites, 7").

It is normal for gowns to require some slight alteration in order to fit comfortably.