I just tried this Food Storage Analyzer to see how we are doing on our food storage. This is a really nice program that keeps track of long term and short term food storage. You don't have to worry about making your own spread sheet because it is so complete! If you don't know how much storage you have or how long it will last, I would suggest that you go to this link and try the Food Storage Analyzer. It will help you to know the nutrition facts and keep track of how much you have and how much you need for a well balanced pantry of food.