CalculatorExample answer
How much water does my cat need?
Daily water need (from food + bowl): ~198–297 ml/dayEstimate
Includes moisture from food. Wet food is up to ~80% water, so wet-fed cats drink less from the bowl — that's normal.
This is a typical case. Run it for your cat →
Full result
If your cat drinks little: Add wet food, use wide/shallow bowls away from food, try a fountain (some cats prefer running water — it's individual). Estimate
Important: Wet food supports hydration, but there is no good evidence it PREVENTS urinary disease. If your cat strains, cries, or passes blood in urine, treat it as a medical emergency, not a hydration tweak.Fact
Watch for these
- Sudden increased thirst, or straining/blood in urine, needs a vet — see the urinary red-flags tool.
Routine decision. You can act on this at your own pace.
How this was decided
- water need ~4oz/5lb/day (EV-013, estimate)
Sources
- Cornell Feline Health Center T1 · Tier 2 · verified 2026-07-17 · commercial bias noted
Real questions cat owners ask
- My cat won't drink water, help?
- My cat won't drink from his new fountain?
- Do water fountains for cats really increase water intake? And what is the best automatic fountain?
Save your cat to My Cat to personalize this, or run it with your cat’s details.