answer:Not sure how helpful this is, but Milo weights about 13lbs. 7 oz and eats c. 1 cup of Hill’s prescription tartar-control per day Package says “268 kcal/cup.” I am not sure what a “kcal” is either. He gets a bit more from crumbs of cheese, chicken, a cat treat or two and sneak licks of butter or cream cheese when my back is turned. He is in and out all day long. I have never seen him (ever) go after anything larger than a chipmunk. But, of course, he knows he has a food supply waiting.