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Cat Water Intake Calculator

Estimate a broad daily total-water range by body weight for a healthy cat.

Cat Water Intake Calculator

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Assumptions and limits

This broad reference range is not a prescription or a bowl-water target: it includes water from food. Actual needs vary with diet moisture, temperature, activity, age and health. Keep fresh water available; contact a veterinarian for sudden changes, illness, or individualized guidance.

Formula

Estimated total daily water = 44–66 mL × body weight (kg).

Example

A 4 kg cat: about 176–264 mL total water daily.

Method source — Merck Veterinary Manual

STEP BY STEP

How to use cat water intake calculator

  1. Calculate and read the result in the displayed units.
  2. Review the formula, example and limits.

IN PRACTICE

Example

A 4 kg cat gives a broad estimate of 176–264 mL (0.18–0.26 L) total water per day.

GOOD TO KNOW

What does this estimate include?

This broad reference range is not a prescription or a bowl-water target: it includes water from food. Actual needs vary with diet moisture, temperature, activity, age and health. Keep fresh water available; contact a veterinarian for sudden changes, illness, or individualized guidance.

Practical guides

How Much Water Should a Cat Drink? Daily Estimate by Weight →

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