How Many Meatballs Do You Need to Feed 100 People?

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The number of meatballs needed for 100 people depends upon their size and the manner in which they are served. A standard main course serving size is 6 ounces of meat per guest, or approximately 600 1-ounce meatballs, 400 1 1/2-ounce meatballs, 300 2-ounce meatballs and 200 3-ounce meatballs.