Calculator · US
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 0.3 gallons (1.2 L) a day and a cat about 0.1 gallons (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.
