First step is to cut your tank/T-shirt. Final measurement was 15 3/4 inches from the top of one shoulder strap to my cut line. again...that measurement will depend on your sizing. Cut about where you want the skirt to attach...in my case, it was my high waist. Just leave a little room to sew the tank to the skirt.
*Unfold your fabric and wrap it 1 and 1/2 times around your waist where you want the skirt part of the dress to start. Cut off the remaining fabric.
Here's what you need~
Fabric: 1 1/2 yards of a knit fabric, or something with a little stretch already in it. 36" x 50"