By the gallon

A peek at our water footprint

Americans use an average of 100 gallons of water each day.

• Baths take about 70 gallons.

• Showering for five minutes takes between 10 and 25 gallons.

• A standard toilet’s flush uses 3.5 gallons.

• Laundry accounts for about 22 percent of a household’s indoor water usage.

• A faucet leaking one drop per second wastes 3,000 gallons per year.

• Energy Star dishwashers use about 4 gallons of water, as opposed to 6 gallons for standard washers. Handwashing, on the other hand, consumes about 20 gallons.

• It takes 22,000 gallons of water, on average, to fill a pool.

• It takes 39,090 gallons to manufacture a new car.

• Seventy laundry loads’ worth of water goes into the manufacturing of a single laptop computer.

• Growing and processing 1 pound of cotton takes 100 gallons of water.

• Production of a single T-shirt consumes more than 700 gallons.

• Producing a conventional quarter- pound burger takes an amount of water equivalent to about 30 showers (634 gallons).

It takes 53 million gallons per second to supply the world’s food.

• It takes 55 gallons of water to grow enough beans for one cup of coffee.

• One gallon of milk: 1,000 gallons of water.

• A single walnut: 4.9 gallons of water.

• A head of broccoli: 5.4 gallons.

• Head of lettuce: 3.5 gallons.

• One tomato: 3.3 gallons.

• One almond: 1.1 gallons.

• One pistachio: .75 gallons.

Sources:,, National Geographic, Mother Jones