How many pounds of spaghetti would I need for a wedding reception of 50-75 ppl?

For a wedding reception of 50-75 people, you would typically need about 1 pound of dry spaghetti for every 4-5 guests, depending on whether it's the main course or part of a buffet. This means you should prepare approximately 10-15 pounds of dry spaghetti. It's always a good idea to round up a bit, especially if guests have hearty appetites or if there are limited other main dishes.