Tool
Water calculator
Ready.gov's rule is 1 gallon of water per person per day, for drinking and sanitation. Enter your household and how many days you want to cover.

Store at least
12 gallons
45 litres · 31 1.5 L bottles
That is 1 gallon (3.8 L) per person per day.
Before you fill the jugs
- Store at least a 3-day supply; two weeks is better if you have the space.
- Children, nursing mothers and people who are sick may need more, and hot weather can double the need.
- Buy commercially bottled water and keep it in its sealed container, or follow the storage steps for your own containers.
- Pets need water too: count them in.


