It is relatively easy to knit a scarf without using a pattern. Creating a scarf can be as simple as deciding the width, the length, the desired yarn and the desired stitch.
The first step is deciding the width of the scarf. Most scarves are about 6 to 8 inches wide, but the width can vary based on personal preference. Next, figure out how many stitches create an inch, and cast on the appropriate stitches to make the desired width. Then, decide on the desired length; a good rule of thumb is that a scarf should be at least as long as the wearer is tall. Finally, choose a stitch, and begin knitting. The stockinette stitch works well, but a large variety of stitches can be used to create a personalized scarf.