beyora, I emailed them about my height and weight and requested their suggestion because I don't have alot of sewing experience yet.
If it will help, and I can rely on 5 billion people to not spread my size around ( yeah, right!), I'm right at 5 foot tall and 135 pounds. They suggested 3 meters, which allows for mistakes. By the time I actually fit this, it should be s looser fit as I've been dropping weight slowly. I don't know how thin, thick, tall or short you are, but I recommend emailing them, if you are buying the fabric from them for certain.