After making a sweater for my granddaughter and showing it off at work, my supervisor asked me to make one for her. My task was to convert the pattern to an adult size. So I went to the web and found a sizing chart, looked at the dimensions for the toddler size I had made and for the woman's size. Then I figured out the percentage of difference between the two. I increased the toddler size pattern by that percentage. It worked and the sweater fit my supervisor perfectly.