Sheltered pets often have problems related to their diets, and knowing how much to feed them for their life stage and health status can be tricky, especially if you’re working with donated foods that aren’t consistent meal to meal. Such calculations are critical, particularly when feeding starved or underweight pets, or pregnant animals.

This process is also difficult and time-consuming. Fortunately, ASPCAPro has made it easy with their free shelter food calculator:

Our calculator takes the higher math out of this task. You can plug in a few numbers, and then print out charts that show the appropriate amount of food by weight and life stage for both dogs and cats.

Download it here.