I get emails all the time about circle skirts and how to make them, and as always FIRST I am going to show you how I make my pattern for one.
Measure around your waist (where you want your circle skirt to sit), add 2" and divide by 4. (30+2/4=8)
Take a piece of paper, starting in the corner measure out 8" and mark it like so.
Basically you are creating a 1/4 circle.
Cut out, and trace to make another one.
Tape together to create a 1/2 circle.Your pattern is done! I will show you how to use it in an upcoming tutorial :)