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 Much Water Does a Cat Need per Day? Vet-Approved Facts & Health Tips

cat dipping its paw in water bowl

Like humans, cats require access to fresh drinking water, which is essential for proper body functioning and optimum health. Water helps cats maintain good health and flush out toxins from their systems while aiding their digestion and circulation.

Without enough water, cats could easily become dehydrated, leading to further health issues. Therefore, your feline should intake an adequate amount of water per day to stay properly hydrated.

But how much water does a cat need per day? As a general rule, cats should usually drink around 2 ounces of water for every 2.2 pounds of body weight (50-60 ml per kg).

In this article, we talk more about cats and their water requirements, including how long felines can survive without water and how much water they need per day!

divider cats oct 2024

How Much Water Do Cats Need per Day?

For their daily water intake, cats need between 3.5 and 4.5 ounces of water per 5 pounds of their weight 1.

Here’s a mini guide on how much water cats should have daily:
  • Kittens (3–6 pounds):5–5.5 ounces of water per day
  • Medium cat (8 pounds): 6–7 ounces of water per day
  • Large cat(13 pounds): 8–10 ounces of water per day

That said, every cat is different, and an individual cat’s water intake should be adjusted to their diet and current health.

Many cats get moisture from other sources besides water, including wet food and even dry food, faucets, puddles, bird baths or the bowls of other pets, so it may seem like they’re drinking less water than they’re supposed to.

That said, cats that don’t consume wet food nor have access to other sources of drinking water will require you to provide them with the necessary water for hydration.

maine coon cat dipping its paw in water bowl
Image By: Pickless, Shutterstock

How Long Can Cats Survive Without Water?

In general, most healthy cats can go 3 days without water (or even longer in experimental conditions), but of course, that doesn’t mean they should. If without water for that long, most cats will experience dehydration, organ failure, and other deadly health problems. Cats should have access to fresh, clean water every day.

Therefore, you must provide enough water for your cat every day in order to prevent dehydration.

divider cats oct 2024

Cat Dehydration: Causes, Signs, and Treatment

Dehydration in cats occurs when they don’t consume enough water needed for proper daily functioning. They will experience multiple body changes, including losing electrolytes and important nutrients like sodium, potassium, and calcium. The balance of these nutrients is crucial for keeping the cat’s tissues and organs in good shape.

vet listening to a cat's chest with a stethoscope
Image Credit: Andy Gin, Shutterstock

Causes of Dehydration in Cats

Some cats may experience dehydration if they’re not feeling well and therefore are not drinking enough water or if they have health problems that lead to excessive water loss. The main causes of dehydration in felines are:

  • Trauma
  • Vomiting
  • Diarrhea
  • Fever
  • Diabetes
  • Heatstroke
  • Kidney disease

Dehydration could be fatal for cats, which is why you should know how to recognize the signs in your furry companion, so you can quickly treat them to prevent further health damage and avoid severe medical problems.

Signs of Dehydration in Cats

Cat dehydration can be mild or severe, so the signs of this problem can vary. The most common signs include:

  • Dry gums
  • Increased skin tenting
  • Lethargy
  • Sunken eyes
  • Weakness and eventual collapse

If you notice any of these signs, immediately speak with your veterinarian and get the needed treatment for your cat.

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

Treatment of Dehydration in Cats

The treatment of dehydration typically starts with your vet inspecting your cat to determine the severity and cause of the dehydration. Further treatment includes giving IV fluids to help your cat regain hydration. In many cases, the cat may require hospitalization.

Your vet will also help you treat any underlying health issues that your feline may be experiencing.

divider cats oct 2024

Frequently Asked Questions

How Can I Check My Cat’s Hydration?

If it seems that your cat isn’t drinking enough water, here are two easy ways  to see if your feline is hydrated:

  • Skin pinch test — If you gently pinch and pull your cat’s scruff skin, it should go back into position if your cat is properly hydrated. If the skin does not go back into position or takes a long time to go back, your cat may be dehydrated. Unfortunately, this test only works on young and healthy animals with elastic skin and is unsuitable for older cats and cats with medical problems.
  • Your cat’s gums —All you need to do is gently lift your cat’s lips and take a look at their gums. A cat’s gums should be wet and bright pink. Any signs of dryness or paleness could indicate that your cat is dehydrated.

What Should I Do If My Cat Is Dehydrated?

In most cases, dehydration in cats occurs due to an underlying medical problem rather than not having enough water. That said, if you suspect that your cat is dehydrated, consult your veterinarian and seek further advice.

In the meantime, you can help keep your companion hydrated on a hot day by offering them wet food or placing multiple water dishes around the house, offering a source of running water such as a cat fountain or even turning the tap on for them.

Ensuring that your cat drinks enough water can be challenging, but with a little creativity and the right fountain, it can be achieved. Hepper's Stainless Steel Cat Water Fountain is a great product that will motivate your cat to stay hydrated by providing fresh, flowing water. This model is easy to clean and offers excellent triple filtration, multiple flow modes, and a large capacity, making it an excellent choice for your furry friend.

Hepper Stainless Steel Cat Water Fountain
  • Premium 304-Grade Stainless Steel - This metal cat water fountain is hygienic, with superior...
  • Serene & Healthy Cat Drinking Fountain Experience - With whisper-quiet pumping & an advanced...
  • Say Goodbye to Dehydration - Provide your cat with a constant source of flowing water with this...

At Catster, we’ve admired Hepper for many years and decided to take a controlling ownership interest so that we could benefit from the outstanding designs of this cool cat company!

Why Won’t My Cat Drink Water?

Although cats don’t drink much water, they still need a certain amount of liquids to keep their systems functioning. So, if your cat won’t drink water, it’s important to determine the cause of the issue.

There are several reasons that your cat could be refusing to drink water, including:

  • They are already properly hydrated.
  • Their water bowl is not clean enough, or their water is not fresh.
  • Their water bowl is in a hard-to-reach location.
  • They could be experiencing medical problems.
  • The water bowl is near their food or litter tray instead of place away from them.
  • They have to share the water bowl and are anxious to do so.
  • The water bowl is in a high traffic area of the house such as the kitchen.

How Can I Help My Cat Drink More Water?

There are several tips and tricks that you can use to help your cat drink more water, including:

  • Place several water bowls around the house for easier access.
  • Try different types of bowls as cats can be particular about what they drink from. Wide, flat ceramic bowls or a glass on your bedside table, for example.
  • Regularly clean the water bowls and ensure that your cat gets fresh water every day.
  • Offer wet food or moistened kibble instead of dry cat food.
  • Discuss potential dietary changes with your veterinarian.
  • Consider making or buying a cat water fountain.

divider cats oct 2024

Final Thoughts

Felines require around 3.5–4.5 ounces of water per 5 pounds of body weight to maintain optimum health and stay hydrated. This includes water gained from food. Without enough water, cats could easily become dehydrated and suffer severe consequences. If you notice any signs of dehydration in your cat, contact your veterinarian to prevent further deterioration.


Featured Image Credit: yykkaa, Shutterstock

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

3 Homemade Cat Gravy Recipes: Vet Approved Healthy Options

Cats are obligate carnivores, so they need nutrients only found in animal products for a complete diet—including animal protein and fat. Cats are...

Why Are My Cats Whiskers So Short? 7 Vet-Approved Reasons

Cats have amazing sensory abilities. They can see in low light conditions that people struggle to navigate and can rotate their ears 180...

Vietnam’s Year of the Cat: Vietnamese Lunar Zodiac Celebrations Explained

If you have always been disappointed in the distinct lack of a cat in the traditional Zodiac, you will be ecstatic to learn...

Meet Cat Matchers, a Rescue Group That Helps Pair the Right Cats with the Right Homes

It’s like dating: Not every cat is right for every human. Just like a quiet bookworm won’t be happy dating a loudmouth, a...

More related

Why Is My Cat Gagging? 7 Vet-Reviewed Reasons

If you’ve recently seen your cat gagging, you may wonder what causes it and whether you should be concerned. Gagging is a confusing...

Cat Chin Mites vs. Chin Acne: How To Tell The Difference (Vet Answer)

Lots of strange things can happen with cat chins. For instance, who knew cats can get acne, just like people? They can! And...

4 Amazing DIY Cat Run Plans You Can Create at Home

Cats are one of the most popular pets in the world. They are known for their independent nature, and many people enjoy having...

Do Cats Like Kisses? Feline Preferences Revealed

Kissing is a very intimate form of communication between people that allows us to show affection toward each other. There are lots of...

Keep reading

Does Steam Cleaning Kill Fleas? Vet-Approved Effectiveness & Safety Explored

If your cat has fleas and they’ve also infested your home, we feel your pain. If you’re contemplating reaching for the phone to call in a steam cleaner, it’s important to note that using a steam cleaner will indeed kill...

cleaning sofa with a steam cleaner

How Much Do Snowshoe Cats Shed? Our Vet Answers & Provides Tips

The Snowshoe cat is a medium-to-large breed of cat. Originally a natural mutation found in a litter of Siamese kittens, the breed was further developed by crossing the individuals in that litter with American Shorthair cats. Most Snowshoe cats are...

snowshoe siamese cat in the grass

Why Is My Cat Suddenly Sniffing Everything? 6 Vet-Reviewed Reasons

Every cat owner knows that cats have an extraordinary sense of smell. They use this gift to analyze their environment and grasp their surroundings. Felines have 45–80 million (and possibly up to 200 million) olfactory receptors; we humans only have...

grey cat sniffing on house plant

Can Cats Eat Pepperoni? Vet-Reviewed Nutritional Facts & Safety Info

You might have left out a leftover pizza only to be interrupted by a phone call. When you come back, you find your cat chomping down on the pepperoni. Should you be worried? Can cats even eat pepperoni? We’ll look...

Can Cats Eat Pepperoni

How Long Does It Take to Spay a Cat? Surgery Details Revealed

Millions of people take their cats to the vet each year to have the vet spay them. It’s a routine surgery, in general veterinarians can spend between 15 to 20 minutes on the procedure. That’s why we came up with...

cat neutered

How to Help Control Fleas in Feral Cats: 5 Vet-Approved Tips & Tricks

Most feral cats have difficult lives; one common problem they face is being infested with fleas. The parasites can be quite dangerous and lead to other diseases, which is why feral cats with fleas need our help. This article includes...

Beige or cream coloured cat scratching its ear

How Often Should You Take Your Cat to the Vet? Vet-Approved Advice

Vet visits can be extremely stressful for you and your cat, which may lead to you opting to avoid taking your cat to the vet altogether. However, it’s extremely important for your cat to see a vet at least once...

female veterinarian carrying a white cat

Exotic Shorthair Cat Health Problems: 10 Vet-Reviewed Issues

Many pet parents love flat-faced cat breeds, and the Exotic Shorthair cat is one such breed. Their squashed little noses and huge round eyes make them irresistible to some. In fact, as of 2023, Exotic Shorthair cats were the fourth...

Catster_Health Problems of Exotic Shorthair