Pet Calculators

Free calculators for everyday questions about dogs and cats. Each one shows how it works and where its numbers come from. They give estimates, not a diagnosis, so check anything important with your veterinarian.

• Dog age calculator

  Your dog’s age in human years, using the AVMA age chart and the UC San Diego DNA formula, plus the dog’s life stage.

• Cat age calculator

  Cat years to human years and the AAHA/AAFP life stage: kitten, young adult, mature adult or senior.

• Pet food and calorie calculator

  Daily calories for dogs and cats from weight and life stage (AAHA formula), turned into cups, cans or grams of your food.