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    Pet Hydration Calculator

    Calculate your pet's daily water needs based on weight, activity level, and diet

    Enter Your Pet's Details

    lbskg
    Enter your pet's weight to see daily water needs.
    Calculated locally
    Runs Locally

    Disclaimer: This is an estimate only and should not replace professional veterinary advice. Always consult your veterinarian for personalized recommendations. See Terms of Service

    Veterinary hydration guidelines
    Sources: WSAVA, veterinary research
    Last updated: January 2026

    You now know your pet's daily water target.

    Next questions people ask

    Why Hydration Matters for Your Pet

    Proper hydration is essential for your pet's health. Water supports every body function – from digestion and nutrient absorption to temperature regulation and waste removal. Chronic dehydration, even at mild levels, can contribute to serious health issues including kidney disease, urinary tract problems, and reduced cognitive function.

    Our pet hydration calculator provides personalized water intake recommendations based on your pet's specific needs, taking into account their weight, activity level, and diet type.

    Did you know?

    A cat's body is about 60–70% water. Even mild dehydration (just 5%) can cause lethargy, dry gums, and reduced kidney function. Cats evolved as desert animals and often don't drink enough on their own.

    Source: Journal of Feline Medicine and Surgery

    How We Calculate Water Needs

    The calculation uses veterinary guidelines for daily water intake:

    • Dogs: 50-60 ml per kg of body weight
    • Cats: 40-50 ml per kg of body weight

    These base amounts are then adjusted for activity level and diet type.

    Tips for Keeping Your Pet Hydrated

    🚰 Use Water Fountains

    Many pets prefer moving water. Fountains also keep water fresher and more oxygenated.

    📍 Multiple Water Stations

    Place water bowls in different locations so your pet always has easy access.

    🥫 Consider Wet Food

    Wet food is 70-80% moisture, providing significant hydration with every meal.

    🧊 Fresh & Clean

    Change water daily and clean bowls regularly. Pets may avoid stale or dirty water.

    Important Disclaimer

    This calculator provides estimates based on veterinary hydration guidelines. Individual pets may have different needs based on health conditions, medications, climate, and other factors. If your pet is drinking significantly more or less than usual, or shows signs of dehydration, consult your veterinarian. Sudden changes in water intake can indicate health issues.

    Frequently Asked Questions