Measure under your arms, around the fullest part of your bust with only the bra on that you intend to wear with your dress. (Note: Your bra size is not the same as your bust measurement.)

Bend to one side to find the natural crease of your waist; measure across at this point. (Approximately 1 inch above your belly button.)

Standing with feet together, measure around the fullest part of your hips and rear. (Approximately 8 inches down from your waist measurement.)