Off-Grid Water Calculator
Figure out how much water your household really needs off-grid — per day, month and year — plus how much storage to keep and roughly how many tanks that is. Adjust the numbers and the results update instantly.
Drinking, cooking, dishes and hygiene. On-grid homes use 80–100 gal/person.
Optional — add a daily amount for a garden, livestock or chickens.
💧 Your water needs
Per day—
Per month—
Per year—
Suggested storage (2 weeks)—
Suggested storage (1 month)—
≈ IBC totes (275 gal) for 1 month—
A full 275-gallon tote weighs over 2,000 lbs — always set tanks on solid, level ground. Insulate or bury lines so they don't freeze in winter.
🚰 Need water hauled? Concho/St.Johns Dash delivers →
Estimates only, for planning. Real usage varies with habits, climate, and equipment. Not engineering advice.
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