The average cost of a gallon of gas is $3.65.
The US average in 1930 was 20 cents per gallon. That would be about $2.81 per gallon in today's dollars (2014).
The average price of gas in 1975 was $0.567 per gallon
The US average in 2010 was $1.51 per gallon. That would be about $2.06 per gallon in today's dollars (2014).
The average cost for a gallon of gas in 1982 was 91 cents. In 1981, a gallon of gas of about $1.25 and in 1985 the cost for a gallon of gas was $1.09.
The US average in 2010 was $1.51 per gallon. That would be about $2.06 per gallon in today's dollars (2014).
The US average in 2006 was $2.59 per gallon. That would be about $3.02 per gallon in today's dollars (2014).
The US average in 2004 was $1.88 per gallon. That would be about $2.34 per gallon in today's dollars (2014).
The US average in 1985 was $1.13 per gallon. That would be about $2.47 per gallon in today's dollars (2014).
The US average in 1998 was $1.06 per gallon. That would be about $1.53 per gallon in today's dollars (2014).
The US average in 1996 was $1.23 per gallon. That would be about $1.84 per gallon in today's dollars (2014).
The US average in 2001 was $1.46 per gallon. That would be about $1.94 per gallon in today's dollars (2014).
The US average in 2000 was $1.51 per gallon. That would be about $2.06 per gallon in today's dollars (2014).