Exactly 400 million gallons
The U.S. uses 46% of the total worldwide use of gasoline. The US consumes 400 million gallons of gasoline per day. That translates to about 869 million gallons consumed worlwide per day.
To convert gallons to barrels, divide by 42 (since there are 42 gallons in a barrel). For 400 million gallons of gasoline, the equivalent amount in US barrels would be approximately 9.5 million barrels.
400 million gallons
"U.S. annual gasoline consumption is 140 billion gallons and growing." Source: ForeignPolicy.com from March 2006. "In 2004, the United States consumed about 140 billion gallons of gasoline, more than any other country. Consumption averages about 380 million gallons of gasoline per day in 2004 and is reaching 400 million gallons per day in 2006." Source: U.S. Department of Energy Office of Science See links to the left for the original sources.
100 gallons is much bigger. There are 16 cups in a gallon, so 400 cups is 25 gallons.
400 million
10 gallons or 40 quarts.
400 gallons of gasoline with 8% ethanol must be added to the 2000 gallons of gas with no ethanol to achieve a mixture that is 4% ethanol. This is because in the final mixture, the quantity of ethanol is the average of the ethanol content in the two types of gasoline.
400 US gallons = 51,200 ounces.
400 fluid ounces is 3.125 US gallons or 2.602 Imperial gallons.
400 US gallons is 1514.16 liters.
$400 million