About This Tool

This calculator estimates daily water needs for cats and dogs based on weight (kg/lb) and small adjustments for diet moisture, activity, and climate.

• Cats: ~40–60 ml/kg/day baseline.
• Dogs: ~50–60 ml/kg/day baseline.
• Adjustments are modest multipliers; always ask your vet for personalized advice.

Why hydration matters

Adequate water supports temperature regulation, joint health, kidney function, and overall wellness. Watch for changes in drinking, urination, energy, or appetite.

Credits

Design system adapted from our reference layout (sticky header, gradient hero, card grid). Assets are available on the Downloads page.