How many lbs of potatoes do you need to make 18 potato salad?

This question can't be answered without knowing how much potato salad each serving is. Here's why:

* Serving size matters: A single serving of potato salad can be a small side dish or a larger portion.

* Potato density: The amount of potatoes you need will also depend on the type of potato you use. Some potatoes are denser than others.

To figure out how much potatoes you need, you'll need to know:

1. Serving size: How much potato salad will each person eat? (e.g., 1 cup, 1/2 cup)

2. Potato density: What kind of potatoes are you using (e.g., red potatoes, Yukon Gold)?

Once you have this information, you can use a recipe or a potato salad calculator to estimate the amount of potatoes needed.