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

Water Usage

Greywater System Calculator

Estimates daily greywater production from showers, laundry, and sinks and projects how much can be recovered for irrigation. Useful when sizing a greywater system for a home or evaluating its payback potential.

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

Water Bill Cost Calculator

Calculate your monthly water bill using tiered pricing, a base fee, and a sewer rate multiplier. Use it to predict costs, compare rate structures, or see how conservation saves money.

Fill in the required fields to see your result.

Key differences

Greywater System CalculatorWater Bill Cost Calculator
CategoryWater UsageWater Usage
Inputs required55
ResultDaily Greywater Available for Reuse (gallons)Monthly Water Bill ($)
What it doesEstimates daily greywater production from showers, laundry, and sinks and projects how much can be recovered for irrigation. Useful when sizing a greywater system for a home or evaluating its payback potential.Calculate your monthly water bill using tiered pricing, a base fee, and a sewer rate multiplier. Use it to predict costs, compare rate structures, or see how conservation saves money.