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Cat Water Intake Tracker
How much water is your cat actually drinking? A common veterinary guideline is roughly 40-50 ml per kg per day, and a change in thirst is one of the earliest signals vets ask about. PetHealthLog lets you log daily intake, wet food and fluid sessions on one timeline - so a sudden change stands out instead of slipping by. Free, no account, works offline.
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Thirst changes are easy to miss - and exactly what vets ask about
Cats are famously quiet about being unwell, but the water bowl tells on them. Drinking noticeably more can be an early signal of kidney disease, diabetes or hyperthyroidism; drinking too little raises the risk of dehydration, constipation and urinary problems. Either way, the first question at the clinic is usually the same: how much, and since when?
Most owners can only answer with a guess, because intake drifts gradually and memory flattens it out. The fix is simple: measure a baseline, then log it. Fill the bowl with a measured amount, check what is left after 24 hours, and repeat for 3-5 days - that is the method veterinary guidance commonly recommends.
PetHealthLog is free, needs no account and works offline, so logging today's number takes a second and builds into a record you and your vet can actually use.
What the tracker actually does
Log daily water intake against a baseline
Record each day's measured intake as a note on the timeline, so a gradual rise or drop is visible as a trend instead of a vague feeling.
Keep wet food and fluids in the same picture
Wet food is typically 70-80% water and supplemental fluid sessions count too - log them alongside drinking so the daily total makes sense.
Track weight next to thirst
Weight and water intake together are far more telling than either alone - both live on one timeline with your cat's meds and reminders.
Note symptoms and changes
Jot more-frequent urination, vomiting or appetite changes next to the intake numbers, building the picture a vet uses to decide what to check.
A vet-ready PDF when something changes
Export a clean record showing when the thirst changed and by how much, so the appointment starts from real data, not recollection.
Common hydration helpers for cats (#ad)
If your vet wants your cat drinking more, these are common over-the-counter helpers owners use. Match anything you add to your vet's guidance.
Get started in under a minute
- Open the app - no download from a store and no sign-up required.
- Add your cat, then measure a 3-5 day baseline with a measured bowl.
- Log the daily number, wet food and any fluids - and watch the trend, not single days.
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Frequently asked questions
- How much water should my cat drink per day?
- A commonly used veterinary guideline is roughly 40-50 ml of water per kilogram of body weight per day - about 160-200 ml for a 4 kg cat - and that includes the moisture in food. Cats on wet food drink visibly less from the bowl because wet food is typically 70-80% water, while dry kibble is only around 10%. Your vet may set a different target for your individual cat.
- How do I actually measure my cat's water intake?
- Fill the bowl with a measured amount of water, and after 24 hours measure what is left - the difference is the day's intake. Veterinary guidance often suggests repeating this for 3-5 consecutive days to establish a baseline. Log each day's number in the tracker so the trend is visible instead of guessed.
- Why is my cat suddenly drinking more water?
- Increased thirst can be an early signal of conditions such as kidney disease, diabetes or hyperthyroidism, and it is one of the changes vets most want to hear about. A log that shows when the increase started and how big it is gives your vet far more to work with than a guess. If you notice a clear change, contact your vet rather than waiting.
- My cat has kidney disease - how much should it drink?
- For cats with chronic kidney disease, an intake of around 50 ml of total fluids per kilogram per day is commonly referenced - counting drinking water, the moisture in food and any supplemental fluids - but the exact target for your cat should come from your vet. The tracker keeps drinking, wet food and fluid sessions on one timeline so you can see whether the daily total is being met.
- Is this cat water intake tracker really free?
- Yes. Logging daily water intake, wet food and fluid sessions, weight checks, notes and the PDF report are all free. No sign-up, no account, and records stay on your device.
- Is this a substitute for veterinary advice?
- No. PetHealthLog is a record-keeping tool, not veterinary advice. Intake targets, diagnosis and any treatment must come from a licensed veterinarian. The tracker simply records what your cat actually drank and how it has been doing, so your vet starts from real data.
Know your cat's normal - and catch the change early
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Informational only - not veterinary advice. PetHealthLog helps you keep records and stay organised, but it does not diagnose, prescribe, or decide your pet's treatment. Diagnosis and any plan should be decided with a licensed veterinarian.
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