I am usually a size 0 or 2, but ordered the 4/6 since it is the smallest size. It is a little big- a little extra fabric in the top part- but over all it is an AWESOME dress! I got so many compliments on it, its so comfortable, the length is perfect, the fabric is forgivable/stretchy, it has pockets and the price point is great. Highly recommend even though I want to keep it my little secret!