Emergency Water Storage Calculator
FEMA recommends at least 1 gallon of water per person per day for drinking and sanitation. Climate, pets, and medical conditions increase that number. Find out exactly how much your household needs.
Multiplier: 1x baseline
0.5 gal/pet/day for drinking
Medical Needs
Add 0.5 gal/day for medical use
56
gallons (212 L)
55-Gallon Drums
Ideal for long-term bulk storage in a garage or basement
2
needed
5-Gallon Jugs
Portable and stackable, great for rotation
12
needed
1-Gallon Bottles
Store-bought bottled water, easiest to rotate
56
needed
WaterBOBs (65 gal)
Fill your bathtub before a storm for emergency supply
1
needed
Purification Tablets
~1 tablet per quart of water
224
Tip: Store water in a cool, dark place. Rotate commercially bottled water every 6-12 months. Tap water stored in food-grade containers should be replaced every 6 months.