A gallon of gasoline today costs about 65 milligrams of gold. 65 milligrams = 0.002292 oz An ounce of gold today is worth about $1,752 $1,752 x 0.002292 oz = $4.01 a gallon On January 1st, 2000, gold was selling at $283.00 an ounce. If the dollar was pegged to gold, gasoline today would cost $0.65 a gallon...