Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Environment
Household Water Usage Calculator
Estimate your household's total weekly water consumption in gallons based on showers, dishwasher cycles, and laundry loads. Use it to spot wasteful habits, size a rainwater system, or benchmark against conservation targets.
Fill in the required fields to see your result.
Environment
Rainwater Harvesting Calculator
Estimate how many gallons of rainwater you can collect annually from your roof based on roof area, local annual rainfall, and system collection efficiency. Perfect for homeowners planning rainwater harvesting systems for irrigation or non-potable uses.
Fill in the required fields to see your result.
Key differences
| Household Water Usage Calculator | Rainwater Harvesting Calculator | |
|---|---|---|
| Category | Environment | Environment |
| Inputs required | 5 | 3 |
| Result | Weekly Water Usage (gallons) | Annual Water Collection (gallons) |
| What it does | Estimate your household's total weekly water consumption in gallons based on showers, dishwasher cycles, and laundry loads. Use it to spot wasteful habits, size a rainwater system, or benchmark against conservation targets. | Estimate how many gallons of rainwater you can collect annually from your roof based on roof area, local annual rainfall, and system collection efficiency. Perfect for homeowners planning rainwater harvesting systems for irrigation or non-potable uses. |