How many yards of fabric for a ankle length size 20 dress?

For an ankle-length size 20 dress, you'll typically need about 3 to 4 yards of fabric, depending on the design and style of the dress. If the dress has a lot of gathers, ruffles, or a train, you might want to consider using closer to 4 yards. Always check the specific pattern requirements, as they can vary. Additionally, if you're working with a patterned fabric, consider extra yardage for matching the design.