Note: 1 gallon = 3.785 Litres
| US | Gallons per year | |
| Shower | 4 people x daily 8 min showers, 9L/min water efficient shower head | 27,773 |
| Toilet | 4 people, 5L per flush average (dual flush), 35 flushes per week | 9,617 |
| Lawn Sprinklers | 2x per week, 3x summer months, 20L/min, 60mins per water | 7,609 |
| Garden Watering | 2x per week, 3x summer months, 20L/min, 60mins per water | 7,609 |
| Bath | Tub half full, 65L tub, 1 bath/day | 6,268 |
| Washing Machine | 70L per load, 5 loads per week | 4,808 |
| Swimming Pool | 14,400 L/yr lost through evaporation | 3,804 |
| Kitchen Sink | 30L/day – Dishes, rinsing food etc | 2,893 |
| Dishwasher | 18L/wash, 1x wash/day | 1,736 |
| Evaporative Cooler | 6,056L/yr (based on 360 hours use) | 1,600 |
| AUSTRALIA | Litres per year | |
| Shower | 4 people x daily 8 min showers, 9L/min water efficient shower head | 105,120 |
| Toilet | 4 people, 5L per flush average (dual flush), 35 flushes per week | 36,400 |
| Lawn Sprinklers | 2x per week, 3x summer months, 20L/min, 60mins per water | 28,800 |
| Garden Watering | 2x per week, 3x summer months, 20L/min, 60mins per water | 28,800 |
| Bath | Tub half full, 65L tub, 1 bath/day | 23,725 |
| Washing Machine | 70L per load, 5 loads per week | 18,200 |
| Swimming Pool | 14,400 L/yr lost through evaporation | 14,400 |
| Kitchen Sink | 30L/day – Dishes, rinsing food etc | 10,950 |
| Dishwasher | 18L/wash, 1x wash/day | 6,570 |
| Evaporative Cooler | 6,056L/yr (based on 360 hours use) | 6,056 |