How many potatoes should be used to make mashed potatoes for 40 people?

Updated February 21, 2017

A "Better Homes and Gardens" cookbook recipe for mashed potatoes calls for 0.454kg. of potatoes for every four servings. recommends using between a third to a half a pound of potatoes per person in mashed potato recipes. To serve a crowd of 40 people, the majority of recipes require approximately 6.8kg. of potatoes.

Recipes and Potatoes May Vary

A quick Internet search reveals hundreds, if not thousands of variations of recipes for mashed potatoes, causing number of potatoes needed to vary. Also, no one has established a set standard for measuring a small, medium, large or extra large potato.

Bottom Line

To determine how many potatoes to purchase, check the specific recipe you are using and divide the pounds of potato called for by the number of servings. Once you know how much potato is required for a single serving, you can multiply that number by the number of guests to determine the amount of potatoes needed


Weighing the potatoes with the scales provided in the supermarket's produce department will ensure you're purchasing the correct amount of potatoes for the recipe.

Cite this Article A tool to create a citation to reference this article Cite this Article

About the Author

Jen Davis has been writing since 2004. She has served as a newspaper reporter and her freelance articles have appeared in magazines such as "Horses Incorporated," "The Paisley Pony" and "Alabama Living." Davis earned her Bachelor of Arts in communication with a concentration in journalism from Berry College in Rome, Ga.