A pet life expectancy calculator estimates how long a pet may live based on species, breed, size, age, and daily care factors. It gives you a realistic lifespan range, current life stage, and simple ways to help dogs, cats, birds, rabbits, and small pets live longer.
Use it to compare dog life expectancy, see how long dogs live by breed size, and estimate lifespan ranges for cats, birds, rabbits, guinea pigs, ferrets, turtles, and more.
Choose a species, pick a breed, then adjust care factors.
Selected breed baseline
Labrador Retriever is treated as a large dog for the base estimate.
Weight category
Living environment
Diet quality
Exercise and enrichment
The estimate starts with breed-specific lifespan data, then adjusts for weight, preventive care, environment, diet, and exercise. Current age is used to place your pet into a life stage and estimate remaining years.
Choose dog, cat, bird, rabbit, or another small pet type.
Search the breed list or pick a breed to load its typical lifespan range and size profile.
Add current age, weight category, environment, diet quality, exercise level, and preventive care habits.
Review the adjusted lifespan range, remaining years, life stage, and personalized tips to help your pet live longer.
These are wide baseline ranges from the embedded breed data. Your selected breed and care profile will narrow the estimate.
Dog
6.0-20.0 years
Small breeds often outlive giant breeds.
Cat
8.0-20.0 years
Indoor living can add meaningful years.
Bird
5.0-80.0 years
Parrots can live for decades with strong care.
Rabbit
5.0-14.0 years
Housing and hay intake matter a lot.
Other pet
2.0-40.0 years
Husbandry drives lifespan for small pets and reptiles.
Use these tools to compare age, growth, calories, and preventive care for the same pet profile.
Convert dog years to human years with breed-size context.
Estimate adult size so you can compare growth against lifespan trends.
Calculate daily calories to support weight management and longevity.
Build a preventive care schedule for dogs and cats.
A pet life expectancy calculator estimates how long a pet may live based on species, breed, size, age, and daily care factors. It is best used as a planning tool, not a guarantee, because genetics and medical history still matter.
Most dogs live about 10 to 13 years overall, but breed size changes that average a lot. Small breeds like Chihuahuas often reach 12 to 20 years, while giant breeds like Great Danes are often closer to 7 to 10 years.
Yes. Indoor cats usually live much longer because they avoid traffic, fights, predators, toxins, and many infectious diseases. That is why this calculator gives indoor living the biggest positive modifier for cats.
Large parrots tend to live the longest. Macaws, cockatoos, African greys, and Amazon parrots can live for decades, while smaller birds like budgies and finches usually have much shorter lifespans.
They often can. Healthy weight, preventive vet visits, dental care, and a balanced diet reduce the risk of common diseases and can add meaningful years or better quality years to a pet's life.