calculate caloric intake for dogs
MetPet.com Staff Writer. Here are some general guidelines for your dog. Individual metabolism, exercise, age, environment and overall health will determine what your dog really needs to be lean and healthy. Dogs, on average, need about 25 calories per pound of body weight per day to maintain their current weight. Small active dogs, less than 20 lbs. in weight, can use up to 40 calories per pound per day. Large dogs, over 100 lbs., can use as little as 15 calories per pound per day.