How much worsted yarn required to knit a 40 x 48 afghan?

To knit a 40 x 48-inch afghan using worsted weight yarn, you'll typically need about 1,500 to 2,000 yards of yarn, depending on the stitch pattern and gauge. The exact amount may vary based on your knitting style and the thickness of the yarn. It's always a good idea to purchase a little extra to ensure you have enough for your project.