How Many Roasted Potatoes Per Person?
An average serving of roasted potato is between 8 and 12 ounces.
For 10 People budget on serving 40 medium sized roast potatoes See the link below for a Table and How To Calculate Quantities to cook
When determining how many roast potatoes per person for a big group average 10 ounces per person. Instead of having to worry about how much each potato weighs, just purchase them by the pound.