i'll tell you if that helps. Take a measuring tape. If you dont have that, take a dollar note. A dollar is 6 inches in length. Measurement from armpit to armpit (as this dress is strapless, i believe measure the part where the dress starts) is measurement at bust, go down to waist (near the flower) which is width at waist and then measure where it flares out maximum just couple of inches below the flower and its the hips width. The measure from top to lowest part of dress vertically and that will give you the length. I hope it helps. If you are using dollar note, I am sure you know how to multiply to find out inches. Lets say two dollar notes wide at waist would make waist 12 inches (6x2). Also all these width measurement is one way so overall width will be multiplied by two for example 12 inches waist will actually be 24 considering the fabric at the back. But you dont have to worry about that. Just give one measurement at the front of the dress and that works just fine for all of us. I hope it helped. Thank you.,,,:)