One cup of Dry pasta makes 2 cups of cooked pasta.
One pound of dry pasta yields 8 cups of cooked pasta.
One pound of dry pasta equals 2.5 pounds of cooked pasta.
There's about 6 cups of cooked pasta you get from 1 lb dry pasta. so 18 cups of cooked pasta can be made from 3 lbs. of dry pasta. This will weigh about 4.5 lbs more or less.
16 oz. dry rotini pasta should equal roughly 8 cups of cooked pasta (1 cup cooked pasta = 2 oz. dry pasta)
What that means is 3 cups of pasta measured after you have boiled it. It does NOT mean to measure it out THEN cook it.
Pasta doubles it's size when cooked. 1/2 cup (4 oz.) dry pasta = 1 cup (8 oz.) cooked pasta
Most pastas will double in size when cooking, so two cups of cooked pasta usually equal one cup of dry.
Cooked or dry pasta ? If dry, a cup is about 3 ounces, so 4 cups would be 12 ounces.
About 2. Just cook some, and see how many cups you have filled once it is cooked?