Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

How Long Does It Take for Cats to Get Along? Feline Friendship Guide

Share

two different cats standing side by side outdoors in the garden

According to the American Veterinary Medical Association (AVMA), about 37 million households have cats. And of those 37 million, each has an average of 1.78 animals per home.1 With those numbers in mind, it’s a safe assumption that many cat owners face the challenge of introducing two cats to one another, and some pet parents have more success than others.

So, how long does it take for cats to get along? It is impossible to predict how long it will take for cats to become friends. Many variables can affect how the animals respond to a new household member. It can often take at least a few weeks of supervised introductions, but sometimes it takes longer. Moreover, some cats may never get used to each other. However, understanding the feline mind can help smooth the way to a peaceful home.

divider single cat paw oct 2024

The 3 Factors Affecting How Cats Interact With One Another

Cats are more in touch with their wild side than dogs. Whereas humans domesticated canines around 40,000 years ago, it was a more recent event for felines roughly 12,000 years ago. Dogs proved themselves helpful right from the start. However, scientists remain puzzled as to why people accepted cats so readily to the point of worshipping them, as they didn’t help us like dogs did in their various roles, aside from mousing, of course.

Our cats have evolved to become less reactive, fearful, and aggressive toward us. However, what effect has evolution had on their relationships with each other?

1. Hunting Behavior

Burmese cat face before pounce hunting to toy mouse at home
Image Credit: Viacheslav Lopatin, Shutterstock

Remember that cats are solitary hunters, with the notable exception of lions. They adapt their daily patterns to their prey’s behavior, whether it’s nocturnal rodents or diurnal birds. Our feline companions even learn their prey’s routines and adjust their sleeping patterns accordingly. At the heart of their behavior beats the heart of a territorial predator.

Our pets have a core area within the home as part of their territory. That’s where your kitty feels safest. The perimeter of this space marks their territorial boundaries. Intact animals will scent mark it to alert other would-be interlopers that it’s occupied. It’s adaptive behavior since it reduces the risk of conflict and supports survival. Along with this cats have a keen sense of smell that exceeds humans, and a Jacobson organ that helps detect chemical messages left around by other cats.

With all this in mind, instinct kicks in when you try to introduce another cat into your household. Your current pet may not view the animal as another friend but as a competitor, hence the hissing and growling that follows. Remember that it’s all about survival for cats. Felines haven’t had much evolutionary pressure to change these instincts, even if they seem odd or unacceptable. It’s their wild side taking the stage.


2. The Emotional Life of Cats

Research suggests that cats can experience the six basic emotions of surprise, fear, disgust, sadness, happiness, and anger.2 They may also feel spur-of-the-moment jealousy. The new kitty you’ve brought home may trigger these emotions, in addition to their instinct to defend their territory. If your pet has never met another cat, their first reaction may be fear or anger.

Felines don’t have a sense of time like we do; everything happens in the here and now. They may not understand the long-term effects of a brief encounter with another cat. It’s a threat to which they must react.

Another mitigating factor is socialization. The critical period for kittens is between 3 and 9 weeks old. Unlike dogs, pet owners typically don’t introduce their pets to other animals, like an individual may take their pet to puppy playtime. The window may close on a kitty without opportunities to meet different animals, which can contribute to the difficulties of introducing a new cat.

Genetics also plays a role. One study examined the behavior traits of 19 breeds.3 The cats most likely to show aggression toward other felines included breeds like the Turkish Van and Korat. On the other end of the spectrum were the Maine Coon, Devon Rex, and Persian.

We can conclude that some cats are predisposed to welcome other animals into the household, whereas others are less inclined. However, environmental factors and rearing also influence feline sociability.


3. Colony Living

Many feral cats are eating outside
Imqge Credit: Murat An, Shutterstock

Interestingly, feral cats can live in loose groups or colonies. They don’t form packs with a hierarchy like canids, but they get along. The main driver is adequate food availability. That makes sense since it is the ultimate reason behind territoriality and its defense. Again, all of this boils down to survival. These animals don’t need to defend the area because their needs are met.

divider single cat paw oct 2024

Helpful Tips for Introducing Cats

As we mentioned, introducing cats may be a challenge. Many variables can affect how long it will take for two cats to get along, or whether they ever will. Sometimes, they end up just tolerating each other, with the occasional squabble when one becomes dominant. People don’t always see eye to eye, so why should we expect different from our pets?

When introducing two cats to each other, we recommend keeping the new kitty in their own room or safe space. They’re going through a dramatic transition becoming part of your household. They need time to acclimate and adjust to the new routines, sounds, and smells of their new forever home. The aim of a successful introduction is all about the first impression.

Cats are very scent-oriented, as it’s one way they communicate. You can begin by letting each animal get used to the other’s scent with beds or blankets each one uses. Don’t attempt to let them meet physically yet. Keep the door to the new pet’s room closed. An excellent way to nurture this relationship is by creating positive associations in both cats.

Two tabby cats on opposite sides of the door
Image Credit: elwynn, Shutterstock

You can begin by feeding each one near the door after they’ve had time to acclimate to the other’s smell. If things proceed without hissing, you can then let each kitty explore the other’s space. It’s the unknowns that are scary for a fearful animal, and going about it this way helps to alleviate those fears.

We recommend proceeding slowly with this process. Don’t try to rush things. The goal is to keep things positive. You know your cat best and understand when your pet feels uncomfortable. You also have to build trust with your new pet. That takes time, too. Ideally, the first face-to-face meeting is with a gate or screen between the cats. Again, if either one growls or hisses, separate them.

These meetings are also excellent ways to use treats for positive reinforcement. Felines are intelligent. It won’t take them long to form this association, as long as both pets get rewarded. You should also praise them. Your positive attitude will go a long way toward bridging the gap.

You should supervise quite a few meetings between the two and avoid leaving the kitties alone together. This could take weeks or months. Also, ensure each one has their own food bowls, beds, and safe spaces that they can retreat to. And don’t forget the golden rule; at least one litter box per cat plus an extra one to ensure nobody is displaced. And if everything fails, you can always consult a veterinarian and ask them for advice.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

divider cats oct 2024

Final Thoughts

Two cats can get along, but the key is to go slowly and follow each animal’s comfort level. Don’t rush the process, as it’s going to take some time for the two to get used to each other. Also, keep in mind that some animals may never become friends, as it really depends on each individual.


Featured Image Credit: Nils Jacobi, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Why Your Cat’s Poop Smells Like a Biohazard

Nobody enjoys litter box duty, but sometimes it gets unbearable. The smell hits you from across the room. You’re scooping faster, lighting candles,...

RIP Your Furniture? Not With This Guide to Cat Scratch Damage Control

Your couch looks like it survived a minor apocalypse. The curtains have mysterious vertical shreds. That new rug you splurged on is already...

Celebrating 15 Years as the Most Popular Resident of No. 10 Downing Street

For almost 300 years, a rather unassuming Georgian building of black bricks with a shiny black door has been the official residence and...

Ask Dr. Paola – Help! My Kitten Pukes After She Eats! (March 2, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

More related

Do Cats Feel Remorse or Guilt the Same Way Humans Do? Dealing With Bad Behavior (Vet-Reviewed)

While your beloved cat feels connected to you, he won’t feel bad if he pees or poops outside the litter box, scratches up...

Why Is My Cat Is Sitting Like a Person? Is That Normal?

Most cat owners can agree that there’s never a dull moment in a feline household. No matter your cat’s personality, they’re always up...

Cat Doesn’t Drink Water But Eats Wet Food: Vet-Verified Concerns, Facts & FAQ

Water is vital for cats because it enables their bodies to function properly and promotes their overall well-being. Cats that eat wet food...

7 Best Non-Tracking Cat Litters in 2026 – Reviews & Top Picks

Cats are wonderful companions, but dealing with their litter box daily can be challenging, especially when they track litter (and other bits) throughout...

Keep reading

Crave Cat Food Review 2026: Recalls, Pros & Cons

Crave Cat Food is manufactured by Mars Petcare and has been on the market since 2017. The brand currently offers a limited variety of dry foods, all of which are grain-free and high in protein. The food is affordable and...

Crave Cat Food Review

Kitten Teething: Vet Reviewed Signs, Timeline & FAQs

A kitten’s first few months are full of milestones. They go from tiny balls of fur with closed eyes to playful kittens who are weaned and ready for their new homes. One step all kittens go through is teething. Below,...

a kitten lying on the floor

Are Ladybugs Poisonous to Cats? Vet-Confirmed Toxicity

Ladybugs are small, brightly colored beneficial insects that can help any garden thrive to its fullest extent. They are exceptional friends to your garden because they eat aphids, tiny pests that gardeners and farmers spend hundreds to thousands of dollars...

a ladybug on yellow flower

Inappropriate Elimination In Cats: Vet-Approved Guide & Explanation

Cats usually are pretty good about going to the bathroom in their litter boxes, but some occasionally veer off course and start peeing and pooping in other places. Inappropriate elimination can have various causes, but it’s almost always something to...

cat sitting in a litter box and looking sideways

E. Coli Infection in Cats: Vet Approved Signs, Causes & Care

E. coli, or Escherichia coli, is a bacterium that sits in most living mammals’ digestive tracts. It can be found in human and animal urine and feces. It’s usually a commensal organism, part of the normal bacterial flora of the...

sick orange cat

Why Is My Cat Scratching the Mirror? Possible Causes & Vet-Reviewed Solutions

There are several possible reasons a cat scratches a mirror. Figuring out the answer largely depends on the context of the behavior. Some cats may be trying to mark their territory since they have scent glands in their paws, and...

How to Get a Picky Cat to Eat: 9 Vet-Reviewed Tips

While many cats enjoy their food a bit too much and happily gobble up everything in sight, others are choosier regarding what they eat. Cats can be put off by something about their food, like its flavor or texture, but...

Tabby cat eating food from white bowl

Can Cats Eat Oreos? Vet-Approved Nutritional Facts

You’re dunking your favorite cookie—an Oreo—into a glass of milk and your feline is staring you down. As their eyes of curiosity check out what you have, you might wonder if you can give them a little sample. We all...

Can Cats Eat Oreos

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.