Water plays a critical role in a cat's overall health. Proper hydration supports kidney function, digestion, circulation, temperature regulation, and urinary tract health.
Most healthy cats require approximately 50 to 60 milliliters of water per kilogram of body weight each day. For example, a 4 kg cat may need around 200–240 ml of water daily.
Water requirements vary depending on age, activity level, environment, diet, and overall health. Cats in warm climates or highly active cats may require additional hydration.
Cats fed primarily dry kibble often drink more water because dry food contains very little moisture. Cats eating wet food receive a significant amount of water from their meals.
If severe dehydration is suspected, contact a veterinarian immediately.
Adequate hydration helps support kidney function and urinary tract health, both of which become increasingly important as cats age.
The kidneys play a critical role in filtering waste products from the bloodstream. Proper hydration helps the kidneys function efficiently and may reduce stress on the urinary system.
Many veterinarians encourage increased water consumption in cats, particularly as they age, because chronic kidney disease is relatively common in older cats.
Wet food typically contains 70–80% moisture, while dry food often contains less than 10% moisture. Because of this difference, cats eating wet food may naturally consume less drinking water while still meeting hydration needs.
Many owners choose a combination of wet and dry food to help support both hydration and dental health.
Use our Cat Water Intake Calculator to estimate your cat's recommended daily water intake based on body weight.
Most healthy cats require approximately 50–60 ml of water per kilogram of body weight daily.
Yes. Wet food contains substantial moisture and contributes to a cat's daily hydration needs.
Common signs include dry gums, low energy, loss of appetite, and reduced skin elasticity.
Cats naturally have a low thirst drive, especially when consuming moisture-rich diets.