How Much Water Should a Cat Drink? Tracking Daily Water Intake

How To

Track it with FurNote, step by step

1. STEP 01

   Estimate your cat's daily range

   As a rough reference, multiply body weight in kg by 50-60 ml to get total daily water, food moisture included. A 4 kg cat lands around 200-240 ml a day. Wet food is about 70-80% water, so cats on wet diets drink noticeably less from the bowl. Treat this as a starting point, not a target. Your vet decides what's right for your cat.

2. STEP 02

   Measure a typical day's intake

   Fill the water bowl to a set level in the morning and check what's left the next morning to gauge roughly how much your cat drank. For a fountain, note the change in reservoir level. In multi-cat homes, separate bowls make individual amounts easier to estimate.

3. STEP 03

   Log it in FurNote's diet record

   Open Records, go to Diet, add a new entry, and fill in the Water (ml) field. You can log food in the same entry, including brand, product name, and amount, so meals and hydration sit together in one place.

4. STEP 04

   Build a baseline over a couple of weeks

   Log water daily for a week or two so you know what normal looks like for your cat. Individual cats vary widely, so your own baseline is far more useful than any general average.

5. STEP 05

   Watch for shifts and review the record

   FurNote's dashboard surfaces a Today summary of what's been logged. If daily intake drops well below your cat's usual range or climbs noticeably higher for several days, that's worth flagging. Persistent excessive thirst can accompany conditions your vet will want to investigate.

6. STEP 06

   Export for your vet

   When something looks off, go to Export, select the diet records and a date range, and generate a PDF. A couple of weeks of logged intake gives your vet far more to work with than 'they seem to be drinking a lot lately.'

FAQ

Frequently asked

How much water is normal for a cat?

As a general reference, around 50-60 ml per kg of body weight a day, moisture from food included, so a 4 kg cat is roughly 200-240 ml. It varies with diet, weather, and the individual cat, so your own baseline matters more than the average, and your vet is the one to interpret a real change.

My cat suddenly drinks much less. Should I worry?

A clear, sustained drop is worth a vet visit. Log the daily amounts in FurNote so your vet can see how long it has lasted and how much has changed, rather than trying to judge it from memory.

Do cats on wet food still need to drink?

Yes, just less. Wet food is about 70-80% water, so a cat eating mostly wet food may only top up a little from the bowl. Fresh water should always be available regardless.

How do I track water in a multi-cat home?

Honestly, it's hard to split precisely. Put several bowls in different spots, log the household total in FurNote, and watch each cat's other signs. If one cat seems off, that's a conversation for your vet.

Are water fountains better?

The evidence is mixed. One small study found only about a 5% difference between running and still water, and it wasn't statistically significant. If your cat already drinks enough, there's no need. If intake looks low, trying a fountain for a week or two and logging the result can show whether your cat personally drinks more.