How much macaroni salad is needed for 100 people?

You'll need about 10-12 gallons of macaroni salad for 100 people.

Here's how to estimate:

* Serving size: Most people eat about 1/2 cup of macaroni salad.

* Gallons to cups: 1 gallon equals 16 cups.

* Total cups needed: 100 people x 1/2 cup/person = 50 cups

* Gallons needed: 50 cups / 16 cups/gallon = 3.125 gallons

* Round up for safety: It's always better to have a little extra, so round up to 10-12 gallons.

Important Note: These are just estimates. Adjust your recipe based on your guests' appetites, the size of the side dishes, and whether you're offering other salads or appetizers.