Dog Water Intake Calculator

How it is calculated

Daily water is ml = weight × per_kg, with the dog's weight in kilograms and the allowance in millilitres per kilogram. If you leave the per-kg box empty, or enter zero or less, the tool uses 55 ml per kg. The result is shown in millilitres, in litres (ml / 1000, two decimals) and in cups (ml / 240, one decimal), where one cup is taken as 240 ml.

Weight must be greater than zero. This is a flat estimate for a healthy adult dog. It does not change with temperature, exercise, diet or health, and it counts all water, including what is in wet food. Puppies, nursing or pregnant dogs and dogs with medical conditions can differ, so treat the figure as a baseline and ask a vet if drinking changes noticeably.

Common mistakes

• Entering the dog's weight in pounds. The box is kilograms, so a 44 lb dog should be entered as 20, otherwise the water figure is more than doubled.
• Entering the per-kg allowance in ounces or litres. It is millilitres per kilogram, so 55 is right and 0.055 would be treated as a tiny allowance.
• Treating the figure as a fixed target. Heat, exercise and dry food raise needs, so a dog drinking more is not automatically a problem.
• Ignoring the water already in wet food. The estimate is total intake, so a dog fed mostly wet food will drink less from the bowl.
• Using the result to restrict water. It is a guide to what is normal; never limit access to water to hit the number.