Tap Water Calculator — Free Online Tool
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Tap Water Calculator

Calculate household tap water consumption and municipal demand

Water Standard: Indoor household water use typically averages 80 to 100 gallons per person per day (GPCD). Enter your household size and usage below.
Household Water Parameters Input

Calculation Results

⚠️ Installing water-efficient aerators, low-flow showerheads, and dual-flush toilets can reduce household water consumption by up to 30% or more!

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