take measuring tape and measure from your high waist to the floor for your length. The width of the fabric you choose will need to be anywhere from 48in to 70in. Depending on your size. Whatever your size, make sure the fabric comes on the bolt at at least the minimum width. You will want your skirt to be ONE piece of fabric. Sew sides, attach elastic, hem.
Tutorial: Super Quick No-Elastic Knit Skirt! - Polka Dot Overload | Sewing, knitting vintage projects, tips, tutorials and cartoons!