Free Homestead Tool

Off-Grid Water Storage Calculator

Estimate how much water storage your household or homestead may need. Choose your target number of storage days and calculate the gallons and tanks or IBC totes required. Use the advanced planner to include livestock, irrigation and other water demand.

Use your own estimate. For drinking-only planning, 1 gallon per person per day may be the number you choose. For whole-house planning, include cooking, dishes, hygiene, laundry and other household uses.
Optional. Leave this at 0 if you are planning a new system.
275 gallons is prefilled because it is a common IBC tote size and the size we use at Hideaway Homestead Ranch.
days

Your estimate

Water Storage Plan

Estimated daily use 2 gal
Estimated 30-day use 60 gal
Storage target 30 days
Gallons you need to store 60 gal
Tanks / totes needed 1 tote
Your current storage 0 gal
Current storage lasts about 0 days
Plan for enough storage to cover your target.

Adjust the household use and target days above to see how many gallons and tanks or totes you need.

← Back to Free Resources Explore our Off-Grid Water Guides → See the Water Gear We Use →
Planning note: Results are estimates for planning purposes. Actual water needs vary by household, climate, season, animals, irrigation methods, system losses and local conditions. Confirm critical livestock and emergency-water requirements using appropriate local or professional guidance.