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Pet Calculators

Pet Water Intake Calculator

How much water a dog or cat should drink daily, and when to worry.

Enter values

Results update as you type.

Result

Daily water intake

1,100 ml

In litres
1.1
Per kilogram
55 ml/kg
Bowl refills (500 ml)
2.2
Concerning if above
2,000 ml — see a vet
Concerning if below
500 ml — see a vet
Water from wet food
None — all from drinking

About the Pet Water Intake Calculator

How much water a dog or cat should drink daily, and when to worry.

Also known as: dog water intake, cat drinking water amount, pet hydration calculator, how much water should my dog drink.

How to use this calculator

  1. Enter animal, weight, diet, conditions.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

roughly 50–55 ml per kg of body weight per day, adjusted for diet

Worked example

Using the values pre-filled in the calculator above:

  • Animal: Dog
  • Weight = 20 kg
  • Diet: Dry food
  • Conditions: Mild

the calculator returns:

  • Daily water intake: 1,100 ml
  • In litres: 1.1
  • Per kilogram: 55 ml/kg
  • Bowl refills (500 ml): 2.2