Last updated: October 3, 2026
How To Use
This calculator estimates how long your cat may live based on breed, whether they live indoors or outdoors, spay or neuter status, weight, and care. Living indoors is the single biggest factor in feline longevity. These are general estimates, not guarantees, and individual cats vary.
Quick Steps
- 1 Select your Cat's Breed (choose Domestic Shorthair or Mixed if unsure).
- 2 Choose your cat's Living Environment (indoor, indoor and outdoor, or mostly outdoor).
- 3 Optionally enter your Cat's Current Age to also estimate remaining years.
- 4 Select Spay/Neuter Status and Weight.
- 5 Tick any Care Factors that apply.
- 6 Click Calculate to see the life expectancy estimate.
Cat Life Expectancy Calculator
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How Long Do Cats Live?
Most pet cats live 12 to 18 years, and many reach their late teens or early twenties. The single biggest factor is whether a cat lives indoors or outdoors. Indoor cats avoid traffic, predators, fights, and many infectious diseases, so they live several years longer on average than cats that roam outside.
Indoor Cats
Safest, longest-lived; 18 to 20 is common
Indoor + Outdoor
Some outdoor time adds risk
Mostly Outdoor
Traffic, predators, and disease shorten life
Oldest on Record
Creme Puff, an exceptional outlier
Cat Life Expectancy by Breed
Below are typical indoor life expectancies for popular cat breeds. These are general ranges for a well-cared-for indoor cat. A mixed-breed domestic cat kept indoors can live just as long as any pedigree.
| Breed | Typical Indoor Life Expectancy |
|---|---|
| Domestic Shorthair | 13–17 years |
| Siamese | 15–20 years |
| Burmese | 16–18 years |
| Russian Blue | 15–20 years |
| American Shorthair | 15–20 years |
| Ragdoll | 13–18 years |
| Maine Coon | 12–15 years |
| Persian | 12–17 years |
| British Shorthair | 12–17 years |
| Bengal | 12–16 years |
| Abyssinian | 12–15 years |
| Sphynx | 12–15 years |
| Scottish Fold | 11–15 years |
| Norwegian Forest Cat | 14–16 years |
Life expectancy ranges are general estimates. Individual cats may live longer or shorter depending on genetics, health, and care. Use the calculator above for a personalized estimate.
Factors That Affect Cat Lifespan
Breed sets a rough baseline, but lifestyle and care do most of the work. These are the factors with the biggest impact on how long a cat lives:
Factors That Add Years
- Indoor living: The biggest single factor; indoor cats live several years longer
- Spaying or neutering: Reduces roaming, fighting, and certain cancers
- Healthy weight: Avoiding obesity lowers the risk of diabetes and joint disease
- Quality diet: Complete, life-stage-appropriate nutrition and good hydration
- Regular vet and dental care: Catches kidney disease, hyperthyroidism, and dental disease early
Factors That Reduce Lifespan
- Free roaming outdoors: Traffic, predators, fights, poisons, and disease
- Obesity: Raises the risk of diabetes, arthritis, and other conditions
- Skipped veterinary care: Common senior diseases go undetected
- Untreated dental disease: Painful and linked to other health problems
- Not spaying or neutering: More roaming, fighting, and reproductive cancers
Curious how old your cat is in human years? Try our Cat Age Calculator. To keep your cat in the healthy weight range that supports a long life, use the Cat BMI Calculator and see our senior cat weight guide. For common conditions in older cats, visit the Cat Health guides, and for end-of-life quality-of-life questions, the Cat Quality of Life Calculator.
FAQs
Frequently Asked Questions
How long do cats live?
Most domestic cats live 12 to 18 years, and many reach their late teens or early twenties with good care. Indoor cats average around 13 to 17 years, while cats that spend a lot of time outdoors tend to live noticeably shorter lives because of traffic, predators, disease, and injury.
How long do indoor cats live?
Indoor cats typically live 13 to 17 years on average, and reaching 18 to 20 is common. Staying indoors removes many of the biggest risks to a cat, which is why indoor cats live several years longer than outdoor cats on average.
What is the average lifespan of a cat?
The average lifespan of a pet cat is about 12 to 15 years, though this depends heavily on lifestyle. Indoor, spayed or neutered cats at a healthy weight with regular veterinary care sit at the higher end of the range.
How long do outdoor cats live?
Cats that live mostly or entirely outdoors often live only about 5 to 10 years, and feral cats can live even shorter lives, because they face traffic, predators, fights, poisons, and infectious disease. Keeping a cat indoors, or providing a safe enclosed outdoor space, is the biggest single thing you can do for their lifespan.
What cat breed lives the longest?
Breeds often noted for longevity include the Siamese, Burmese, Russian Blue, and American Shorthair, which frequently reach 15 to 20 years. That said, a mixed-breed domestic cat kept indoors with good care can easily live just as long. Genetics, lifestyle, and veterinary care matter more than breed alone.
What is the oldest a cat has lived?
The oldest cat on record, Creme Puff, lived to 38 years. Reaching the twenties is uncommon but not rare for well-cared-for indoor cats. These outliers show what is possible, but a realistic goal for most cats is a healthy life into their mid to late teens.
How can I help my cat live longer?
The biggest levers are keeping your cat indoors (or safely contained outdoors), spaying or neutering, maintaining a healthy weight, feeding a quality diet, and keeping up with veterinary and dental care. Catching problems like kidney disease, hyperthyroidism, and dental disease early makes a real difference in senior cats.
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