Several people have asked me to share my ASJ calculator to help do the math for Elizabeth Zimmermann's Adult Surprise Jacket pattern. I emailed it to a bunch of people, but now I think it's easier just to post it.
Feel free to download this calculator and put in your own measurements and gauge. You will still need to get the pattern itself (you can order it from Schoolhouse Press, or it's in the book The Opinionated Knitter) but this will do the calculations for you.
Click this link to go to a page where you can download the spreadsheet. Let me know if there are any problems!