Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Water Usage
Greywater Recycling Calculator
Estimate your household's weekly greywater output from showers, sinks, and laundry, then see how many gallons are available for garden irrigation or toilet flushing after system losses. Use it when sizing a greywater recycling setup.
Fill in the required fields to see your result.
Water Usage
Household Water Bill Estimator
Estimate your monthly residential water bill from household size, an assumed per-person usage level, and the local volumetric water rate. A quick budgeting tool, not a substitute for reading your utility statement.
Fill in the required fields to see your result.
Key differences
| Greywater Recycling Calculator | Household Water Bill Estimator | |
|---|---|---|
| Category | Water Usage | Water Usage |
| Inputs required | 5 | 3 |
| Result | Weekly Greywater Available (gallons) | Monthly Water Bill ($) |
| What it does | Estimate your household's weekly greywater output from showers, sinks, and laundry, then see how many gallons are available for garden irrigation or toilet flushing after system losses. Use it when sizing a greywater recycling setup. | Estimate your monthly residential water bill from household size, an assumed per-person usage level, and the local volumetric water rate. A quick budgeting tool, not a substitute for reading your utility statement. |