average lifespan of an indoor cat
Cats | Health

What is the Average Lifespan of an Indoor Cat | Detailed Guide

You may want to know how long your cat can live because you just became a cat owner, and you are so happy with the love that you don’t want to lose it ever.

Maybe, you want to know how long outdoor cats can live because you want to adopt a cat, and you want to know which breed will provide you the most prolonged companionship.

It is not easy to put up the exact general lifespan of an indoor cat; however, certain factors determine the lifespan of your cat. Therefore, lifespan varies in different cats.

According to ASPCA (American Society for the Prevention of Cruelty to Animals), the average lifespan of an indoor cat if a cat resides indoors exclusively ranges somewhere between 13-17 years. It is not abnormal for cats to live at least 20 years; the lifespan always depends on the individual cat.

Generally, cat breeds are typically known to live up to 16 years of age; other breeds can make 20 years. You cannot tell your cat’s due age, but you may be lucky to have a cat that will live longer than expected, coupled with proper medication and inspection.

To learn more about this, stick in this article because I will explore all you need to know about your indoor cat’s lifespan and how to help your cat live longer than expected.

average lifespan of an indoor cat

Factors Influencing Cat Lifespan

Let’s look at all the factors that will determine how long your cat can live and how you can ensure the right environment to live a long and healthy life.


Most cat owners are accustomed to their kittens living happily in a domesticated environment. The environment a cat dwells in has a direct impact on how long a cat can live. Wild cats may have a useful lifespan in the wild because the environment adapts the cat’s body accordingly.


The better nutrition your cat has, the better its health will be. Long will it live, cats are mostly carnivores in their nature and therefore derive their nourishment from meat, and with that, understanding their dietary habits and supplements should be maintained to ensure their healthy living. Cat food must be rich in protein owing to their unique digestive mechanisms.


In general, mixed-breed cats have more lifespan than purebred cats; They also found that female cats generally outlive the males. So definitely what breed of cat you are looking to get, how long will it live, surely depend on what genetics it is carrying.

How Long can Indoor Cat live

The most significant challenging factor in tackling a cat’s lifespan is if your cat is an outdoor or an indoor cat.

Scientists have said that indoor cats tend to live longer than outdoor cats. However, cats that stay indoors and go outside often should be kept in mind when comparing cats’ lifespan.

Country differences also tell on a cat’s life span. In Uk, cats spend most of their time outside; outdoor cats are regular while in the US because there are more predators, and cats are encouraged to stay indoors.

Strictly indoor cats can make it to 15 to 20 years. Outdoor cats are exposed and, therefore, prone to accidents mostly when they are still kittens.

The researchers also added that even though a cat can live up to 16 years, the death rate in cats is more rampant during the 18-20 years. A leading cause of death in kittens is trauma, but what about older cats. Don’t they get to experience? At their 5th-year kidney disease may also be a cause of the death of cats.

Let us discuss this section broadly;

Significant Causes of Death in Indoor Cats

There are several things cat owners do without knowing it is a threat to their cat’s lifespan.

Do you want to find out? Check out the list below;

Overfeeding your Cat

Overfeeding is a huge problem for almost all cats. Yes, your cat shouldn’t be too lean or unkempt; being overweight can only create health conditions and make the existing one worse and more complicated. 

Obesity will shorten your cat’s lifespan as it will put up excess stress on all the bones joints and body systems. If you feel you may need help getting your cat to a healthy weight, consult your veterinarian.

Smoking while your Cat is around

While it seems fewer people are cigarette smokers, it is essential to note that secondhand smoke affects cats as much as it affects other people. It increases their risk of cancer and upper respiratory infections; it can worsen their allergies and make them uncomfortable.

Poor Dental Health

Cat owners don’t even think of brushing their cat’s teeth, but more veterinarians recommend it as primary cat care. Poor dental health can not only cause damage to teeth and gums, and it can result in some respiratory infections and even heart and kidney diseases.

Cleaning your cat’s teeth may be difficult, but it’s certainly worth trying. If it seems challenging to brush your cat’s teeth, schedule a yearly dental cleaning that is highly recommended.

Letting your Cat Roam Free Outdoors

There are more dangerous things awaits for the cats outside. Cars, coyotes, and other wild animals are a considerable risk to take as they can lead to an ugly and untimely death to your cat. This is not to say that you shouldn’t let your cat outside. Leash walks and other outdoor enclosures are a great way to make your cat get fresh air safely.

Ignoring your Cat's Signs of Stress

Cats are stoic animals, but that doesn’t mean they are not sensitive. Cat owners don’t seem to understand the signs of stress in their cats. Learning the things you should look at can make a lot of difference in keeping your cat happy and healthy.

If you notice any sign such as excess hiding or grooming, ensure you have your cat examined by your vet to find out if anything is wrong. If you know your cat can get stressed in certain conditions, try to avoid them as much as possible. Putting your cat in stress can shorten your cat’s lifespan.

How can I Increase my Cat's Lifespan?

Now that is certainly an excellent question to ask, find out more by scrolling down;

Knowing Your Cat's Breed

Before adopting a cat, do some research on the typical behavior of some breed. Some breeds will have some specific health issues or character traits you should consider. So it is advisable to learn about them before you adopt a regular pet vet 6-12 months.

Providing a Balanced Diet

Your cat must receive a balanced diet. It needs food that will provide all their nutritional needs. A vet can help you choose the right food for your cat, digestible supplements, or dietary considerations, which may be needed for your cat’s growth.

Don’t forget to ensure that your cat doesn’t get bored using a particular wet cat food or homemade cat cookies.

Keep your Cat Hydrated

Cats can get dehydrated quickly. That is why they need you to help them have enough water to drink. Give them a clean bowl of water, regular water plates; you can use a water fountain.

All wet cat food contains a sufficient water percentage to help your cat hydrated even as they eat.

Follow up with Vaccination

After weaning, a cat’s system begins to mature and, at the same time, prone to diseases; they, therefore, require a vaccination to help protect them from diseases. It is essential in the first three months of your kitten’s life. Following up with prevention is vital to give your cat a good state of health.

Different Cat Breed and their Average Lifespan

To help indicate whether your cat will live longer is determined by the longevity and health of the parents of your cat. Some health problems can be inherited, such as heart diseases, which can also be a factor causing a shortened lifespan.

However, studying your cat’s ancestry can help your vet know the risks of taking in a particular cat.

Siamese Cat Average Lifespan

Siamese cats are commonly known for being a healthy breed among cats. They are also known for their vocal personalities and good eyesight they possess.

However, these cats are prone to several health issues, which include; various types of cancer. Siamese cats generally have an average lifespan of 14.4 years.

Persian Cat Average Lifespan

These pretty cat breeds can make it up to 14 years even though they have various genetic conditions like bladder problems, kidney diseases, liver shunts, and other complications.

Bengal Cat Average Lifespan

Bengals have a short lifespan and look like wild cats. These are the qualities they share with cats in the wild. These cats have the shortest average lifespan of 7 years. They have several hereditary health complications such as polycystic kidney disease several infections.

Savannah Cat Average Lifespan

The Savannah cats are an expensive breed of cats. They are rare to find and live as long as 20 years. Because the savannah cat is a new breed, its average lifespan may not be accurate.

However, consult a breeder for the accurate estimated guess and determine if they have transmitted infections and diseases.

Black Cat Average Lifespan

If you think that other cats can outlive black cats, then you are undoubtedly wrong. There are more black cats for adoption than different cat colors.

However, black cats tend to run away from their owners, but they live longer than other cat colors.

Female Cat Average Lifespan

Generally, females are known to live longer than males. This is also applicable to cats. Studies say that female cats outlive the males but with a difference of a few months.

No one knows how correct this may be, but with the statistics, we can create some figures. Pets experts and vets say that spraying a female cat increases its lifespan by 6-10 months. They say that spraying a female cat reduces specific health issues like pregnancy issues and cancer. You must spray your cat when it is due enough.

Male Cat Average Lifespan

If you take good care of your male cat by neutering it, studies have proved that you will be adding two years to its lifespan just as the female cats.

Balinese Breed Longest Living Cat Breed

The Balinese cat is a long-haired cat of a natural cross between the Siamese and a long-haired breed. They are very playful and quiet. These don’t have health complications when well-groomed and taken and looked after. They live up to 18-22 years.


It is not only the breed or genetics of your cat that can determine how long your cat can live but you, as a cat owner, have a large role to play in your cat’s life.

Just as explained in detail, your cat’s nutrition is vital to keep it healthy and active. Grooming is not just another great way to keep up with hygiene, but it helps strengthen your bond and dictate health problems quickly.

Ensure you always keep your cat away from danger, such as toxins, chemicals and pesticides, and very importantly, and malnutrition. These can help limit the risks of accidents and become overweight.

Always consult your vet when you have problems with your cat; they can help you set up an adequate wellness plan for your cat’s safety and happiness.

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