Please measure the fullest part of your bust with your arms at your side. Measure your waist just below the thinnest area (usually a couple of inches above your belly button) Hips should be measured around the fullest part of your hips with your feet about 6 inches apart. Remember- a seamstress can make the dress 1-2 sizes smaller, They can not make the dress bigger if you order a size that is too small.