Calculate how much water your pet needs each day.
Enter your dog’s or cat’s weight and diet type, and find out the recommended daily water intake. No sign-up, no data stored.
Daily Water Intake Calculator
Based on Weight and Diet Type
Dry kibble and wet food change how much extra water your pet needs.
A Realistic Range, Not a Single Number
We give you a realistic range, because thirst varies with climate and activity.
Instant Result
Enter the data and get the recommended amount instantly.
No Sign-Up, No Waiting
The calculation happens in your browser. No accounts or passwords.
Drinking too little water is more dangerous than it seems.
Dehydration can affect the kidneys and other organs, and it often goes unnoticed because the signs are subtle at first. The amount of water your pet needs depends on its weight, but also on whether it eats dry kibble (which provides little moisture) or wet food (which already contains plenty of water). Knowing the reference range helps you spot if your pet is drinking less than expected.
What result do you get?
During hot weather:
Check whether your pet needs more water than usual.
When switching diet type:
Adjust your expectations if you switch from dry to wet food or vice versa.
If you notice a change in thirst:
Compare it to the reference range before worrying or consulting your vet.
Frequently Asked Questions (FAQ)
Do I need to create an account?
No, never. You can use the calculator directly, with no sign-up or passwords.
Why does it give a range instead of an exact number?
Because water needs vary with climate, activity level and each pet’s health. A range is more realistic than a fixed figure.
What if my pet drinks much more water than expected?
A noticeable, sudden increase in thirst can be a sign of a health issue. If you notice this, consult your veterinarian.
Does this calculator replace a vet’s advice?
No. It’s general guidance, not a diagnosis. For any sudden change in your pet’s thirst, always consult your veterinarian.