Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Water Usage
Water Tank Sizing Calculator
Determines the minimum recommended water tank capacity for a home or commercial building based on occupant count, daily usage, desired storage duration, peak demand, and a safety buffer. Essential for off-grid properties, rainwater harvesting systems, and emergency planning.
Fill in the required fields to see your result.
Water Usage
Shower Water Usage Calculator
Estimate the monthly water consumed by showering based on shower length, showerhead flow rate, and how often you shower. A simple way to size the savings from a low-flow showerhead or shorter showers.
Fill in the required fields to see your result.
Key differences
| Water Tank Sizing Calculator | Shower Water Usage Calculator | |
|---|---|---|
| Category | Water Usage | Water Usage |
| Inputs required | 5 | 3 |
| Result | Recommended Tank Size (gallons) | Monthly Water Usage (liters) |
| What it does | Determines the minimum recommended water tank capacity for a home or commercial building based on occupant count, daily usage, desired storage duration, peak demand, and a safety buffer. Essential for off-grid properties, rainwater harvesting systems, and emergency planning. | Estimate the monthly water consumed by showering based on shower length, showerhead flow rate, and how often you shower. A simple way to size the savings from a low-flow showerhead or shorter showers. |