Science Fact Finder | Energy - How Much Water Does An Average Person Use Each Day?

How much water does an average person use each day?

An average person uses about 123 gallons (466 liters) of water daily. Some individual household activities and the amount of water they consume are listed below:

Activity	Water used
Shower	15-30 gallons (57-114 liters)
Brushing teeth (water running)	1-2 gallons (3.75-7.51 liters)
Shaving (water running)	10-15 gallons (38-57 liters)
Washing dishes by hand	20 gallons (75 liters)
Washing dishes in dishwasher	9-12 gallons (34-45 liters)
Flushing toilet	5-7 gallons (19-26 liters)

Sources: Famighetti, Robert, ed.The World Almanac Book...

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