how old can cats live

Most pet cats live into their early to mid-teens, and many now reach 15–18 years; a smaller but not rare group make it to around 20, and a few exceptional cats have been reported well into their 20s.

Typical cat lifespan

• Domestic cats generally average around 13–17 years, depending on health and lifestyle.

• Many indoor, well-cared-for cats now routinely reach 15–18 years, with some living to about 20.

Indoor vs outdoor cats

• Indoor-only cats usually live significantly longer, often in the 13–17+ year range, because they are protected from traffic, fights, and harsh weather.

• Outdoor or mostly outdoor cats may live closer to 2–5 years due to higher risks of accidents, disease, and injury.

Record and exceptional ages

• While the average lifespan is in the mid-teens, it is well documented that some pet cats reach 20 years or more with good genetics and care.

• Veterinary and owner reports describe cats living into their early 20s as uncommon but no longer extraordinary in modern pet care.

What most affects how long cats live

• Key factors include: indoor vs outdoor lifestyle, genetics and breed, nutrition, body weight, and regular vet care (especially dental and kidney checks).

• Spayed/neutered cats, kept at a healthy weight and vaccinated, generally live longer than cats without routine preventive care.

Simple rule of thumb

• Expect a healthy, indoor cat to live roughly 13–17 years, be pleasantly unsurprised if they reach 18–20, and consider anything beyond 20 a lucky, exceptional old age.

TL;DR: Most cats live around 13–17 years; with excellent care and mostly indoor life, many can reach their late teens and some make it to about 20 or a bit beyond.