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How Much Water Do You Actually Need?
The average person uses 80 gallons of water a day. In a crisis, you only need 1 to survive. Calculate your absolute minimum below and find the best space-saving storage container.
Apartment Water Calculator
Calculate minimum survival water & find space-saving containers.
Adults
2
Children
0
Pets (Dogs/Cats)
0
1 Day1 Week2 Weeks
You Need
6 gal
(22.68 Liters) for drinking & basic hygiene
Why 1 Gallon Per Day?
FEMA and the Red Cross recommend 1 gallon of water per person, per day. This breaks down to roughly:
- Half a gallon (2 quarts) for drinking to stay hydrated.
- Half a gallon for basic hygiene (wiping down, brushing teeth) and light food prep (like reconstituting freeze-dried meals).
If you live in an apartment, storing thirty 1-gallon jugs under your bed isn't realistic. That's why we suggest large-capacity, flat-folding containers like the WaterBob that fit in your bathtub at the last minute, or WaterBricks which stack perfectly like Lego blocks in the back of your closet.