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Both calculators run independently β€” change the inputs on either side to compare results.

Water Usage

Water Pressure & Flow Calculator

Estimate the flow rate (GPH) available at your fixtures given pipe size, supply pressure, elevation change, and pipe length. Use this when sizing a plumbing system or diagnosing low-pressure complaints.

Fill in the required fields to see your result.
Water Usage

Household Water Usage Calculator

Estimate your household's weekly water consumption from showers, toilets, laundry, and dishwashing. Use it to spot waste, compare against averages, or plan conservation goals.

Fill in the required fields to see your result.

Key differences

Water Pressure & Flow CalculatorHousehold Water Usage Calculator
CategoryWater UsageWater Usage
Inputs required55
ResultFlow Rate per Fixture (GPM)Weekly Water Usage (gallons)
What it doesEstimate the flow rate (GPH) available at your fixtures given pipe size, supply pressure, elevation change, and pipe length. Use this when sizing a plumbing system or diagnosing low-pressure complaints.Estimate your household's weekly water consumption from showers, toilets, laundry, and dishwashing. Use it to spot waste, compare against averages, or plan conservation goals.