Free health calculators for dogs and cats. Healthy weight ranges, daily food portions, age in human years, resting heart rate, and more — because your pet can't tell you how they feel.
Calculate my pet's numbers →Find the healthy weight range for your dog or cat based on their breed and size. Weight is one of the strongest predictors of pet longevity — even modest excess weight shortens life expectancy.
Your pet's healthy weight range and body condition assessment will appear here.
Healthy weight ranges vary within breeds based on individual bone structure and muscle mass. Your vet is the best judge of your pet's ideal weight using a hands-on body condition score assessment.
Weight, food, age, and body condition — the numbers that matter most for your dog or cat's long-term health.