18 sts = 5"; 20 rows = 4" in St st. Check your gauge. Exact gauge is not important to this pattern.
Scarf measures 5" wide x 60" long. Cast on 18 sts loosely.
Row 1: Work in Garter Stitch (knit every row), marking first row as a Right Side row, until piece measures 60" from beginning. End with a Wrong Side row.
Next row: (Right Side): Bind off in purl.
Weave in ends.