Calculator · Australia
Pet water calculator
How much water to store for your dogs, cats, rabbits and birds in an emergency, from SupKit's estimates by species and size.
A medium dog needs about 1.2 L a day and a cat about 0.3 L. SupKit estimate
SupKit's estimates
Litres per day by species and size. Hot weather, exercise and dry food all increase how much pets drink, so round up.
| Pet | Small | Medium | Large | Giant |
|---|---|---|---|---|
| Dog | 0.5 L | 1.2 L | 2 L | 3 L |
| Cat | 0.2 L | 0.25 L | 0.3 L | 0.3 L |
| Rabbit | 0.2 L | 0.3 L | 0.5 L | 0.5 L |
| Bird | 0.03 L | 0.05 L | 0.1 L | 0.1 L |
Questions
How much water does a dog need a day?
SupKit estimates 0.5 litres for a small dog, 1.2 for medium, 2 for large and 3 for a giant breed.
Sources
- SupKit planning rules (SupScore 2026.5), SupKit. SupKit's own planning data.
We summarise official guidance in our own words. Always follow advice from your local authorities.


