Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Water Usage
Hot Water Heater Sizing Calculator
Find the right storage water heater capacity (in gallons) for your home based on bedrooms, bathrooms, occupants, and usage habits. Use it before buying a new water heater or when upgrading an undersized unit.
Fill in the required fields to see your result.
Water Usage
Garden Irrigation Water Calculator
Calculate the daily gallons needed to irrigate your lawn or garden based on area, plant type, climate zone, system efficiency, and watering frequency. Helps optimize schedules and reduce water waste.
Fill in the required fields to see your result.
Key differences
| Hot Water Heater Sizing Calculator | Garden Irrigation Water Calculator | |
|---|---|---|
| Category | Water Usage | Water Usage |
| Inputs required | 5 | 5 |
| Result | Recommended Tank Size (gallons) | Weekly Water Needed (gallons) |
| What it does | Find the right storage water heater capacity (in gallons) for your home based on bedrooms, bathrooms, occupants, and usage habits. Use it before buying a new water heater or when upgrading an undersized unit. | Calculate the daily gallons needed to irrigate your lawn or garden based on area, plant type, climate zone, system efficiency, and watering frequency. Helps optimize schedules and reduce water waste. |