How many quarts of potato salad for 15 people?

A general guideline for serving potato salad is about 1/2 cup per person as a side dish. For 15 people, you would need approximately 7.5 cups of potato salad, which is equivalent to about 1.875 quarts. Rounding up, you would want to prepare around 2 quarts of potato salad to ensure everyone has enough.