Hot Water Usage Calculator
Enter the number of times per week each event occurs in your household.
- 1 US Gallon is approximately 4 liters.
- Low-flow shower heads typically have flow rates marked on them. If your shower head does not have the flow rate marked you can likely use the default rate provided by the form.
- Running water can be used to track hot water used while shaving, to rinse suds off of dishes, etc.