Cat Lifespan Guide
How Long Do Cats Live? Average Cat Lifespan Explained
How long do cats live? On average, cats live about 12 to 18 years, and many indoor cats reach their late teens or even their early twenties. The single biggest factor is lifestyle: whether a cat lives safely indoors.
If you love a cat and want more years together, this guide will show you what shapes a cat's lifespan — and the gentle, powerful steps that help most.
Important note
This guide is for general educational use only and does not replace individualized advice from a licensed veterinarian. Every dog is an individual, and your vet knows yours best.
Indoor vs outdoor: the biggest factor
Lifestyle matters more than anything else for cats. Indoor cats commonly live 12 to 18 years and often longer, while free-roaming outdoor cats may average only 2 to 5 years because of traffic, predators, disease, and parasites.
Keeping a cat indoors — or offering safe outdoor time through a catio or leash walks — is the single most powerful thing you can do to extend its life. If your cat currently roams, even partial indoor time helps.
How long do cats live by breed?
Most house cats are domestic shorthairs or longhairs and live 13 to 17 years with good indoor care. Among pedigree breeds, Burmese, Siamese, and Russian Blue cats are especially long-lived, often reaching 15 to 20 years.
Explore our cat breed lifespan guides and breed lifespan lookup to see averages for Maine Coons, Ragdolls, Persians, Siamese, and more.
What else affects a cat's lifespan
After lifestyle, the biggest factors are a lean body weight, dental care, a quality diet with good hydration, parasite and vaccine prevention, and routine veterinary visits — yearly for adults and twice yearly for seniors, since cats hide illness so well.
Spaying or neutering also supports a longer life by preventing certain cancers and reducing risky roaming.
How to help your cat live longer
Start with safety: keep your cat indoors or provide supervised outdoor time. Then keep them lean, care for their teeth, feed a balanced diet with fresh water, stay current on prevention, and keep up regular check-ups.
If you are ever worried about your cat's future, please don't lose heart. Loving daily habits genuinely add healthy years. Our cat lifespan calculator estimates your cat's life expectancy and shows which steps could help yours most.
Cat breed lifespan guides
- Maine Coon lifespan
- Ragdoll lifespan
- Persian cat lifespan
- Siamese cat lifespan
- Sphynx cat lifespan
- Bengal cat lifespan
- British Shorthair lifespan
- Russian Blue lifespan
- Norwegian Forest Cat lifespan
- Burmese cat lifespan
- Abyssinian cat lifespan
- Lynx & flame point Siamese lifespan
- Doll face Persian lifespan
Try the calculator
How long will your cat live?
Get a caring, personalized estimate of your cat's life expectancy — and the habits, starting with indoor living, that can add healthy years.
Open the cat lifespan calculatorFrequently asked questions
How long do cats live on average?
Most cats live 12 to 18 years, and many indoor cats reach their late teens or twenties with good care.
Do indoor cats live longer than outdoor cats?
Yes, by a wide margin. Indoor cats commonly live 12 to 18 years, while free-roaming outdoor cats may average only 2 to 5 years.
What cat breeds live the longest?
Burmese, Siamese, and Russian Blue cats are among the longest-living breeds, often reaching 15 to 20 years.
How can I help my cat live longer?
Keep your cat safely indoors, maintain a lean weight, care for the teeth, feed well, prevent parasites, and keep up routine vet visits.