In 2019, about 142.71 billion gallons (or about 3.40 billion barrels1) of finished motor gasoline were consumed in the United States, an average of about 390.98 million gallons (or about 9.31 million barrels) per day.
1 There are 42 U.S. gallons in a barrel.
U.S. petroleum supply and disposition
Monthly Energy Review, Petroleum, Table 3.5: Product Products Supplied by Type
Historical national and regional data for U.S. product supplied of finished motor gasoline
Energy Explained: Use of gasoline
Last updated: September 4, 2020, with data from Petroleum Supply Annual, August 2020.