Water Usage Calculator

Enter information into the form below and press the "Calculate" button to calculate your daily, weekly, and yearly water use in gallons. You do not need to answer questions if they don't apply.

 

General Questions  
Total number of people in your household. (Required)
Indoor Water use
Bathroom
How many showers are taken each day in your household?
What is the average length (in minutes) of each shower?
Enter 6.3 if you are unsure.
What is the flow rate (gallons per minute) of your showerhead?
Enter 5 for standard showerhead; 2 for low flow.
How many baths are taken each week by members of your household?
Toilets

Average number of times each person flushes a toilet in your house per day.
Enter 4 if you are unsure.

How many gallons does your toilet use per flush?
Enter 5 if you have a standard toilet; 1.6 if you have low-flow toilet.

Faucets
How many times each day does each household member use faucets to shave, brush teeth, wash hands and face, etc.?
How many minutes does the water run during each use?
Washing Dishes
How many times are dishes washed by hand each day?
How many minutes does the water run during each wash?
If you have a dishwasher, how many times is it used each week?
The average dishwasher uses 15 gallons of water per load. Change this number if yours is different.
Laundry
How many loads of laundry are done by members of your household each week?
The average washing machine uses 55 gallons of water per load. Change this number if yours is different.
Outdoor Water Use
Lawn Watering and Other Uses
How many times is your lawn watered each week?
How many minutes is the lawn watered per watering?
Water is also used outdoors to wash cars, fill pools, rinse outdoor furniture, and clean equipment. Estimate the average number of minutes water is used outdoors for purposes other than watering each week.
Daily Water Usage Weekly Water Usage Monthly Water Usage Yearly Water Usage
       
 
 
  • Never water your lawn or landscaping between the hours of 10:00 a.m. and 4:00 p.m.
  • Use low-flow showerheads.
  • Don't use running water to defrost food.
  • Turn off the water while brushing your teeth.