A: It depends on what size potatoes you're talking about. Each bag is a pound and 4 oz, since potatoes vary in size, this is a rough estimate- if your potatoes are smallish, say a half pound in weight then about three bags would equal (or come close to) the 10 spuds. If you're using the big russets that are roughly a pound each, you'd need a bag for every 2 and a half potatoes, so total 4-5 bags.