print order a reprint
See All Tools

Tool | July 2014

Gas Tax Calculator

A bipartisan proposal to boost the federal gasoline tax —potentially the first increase in the 18.4-cents-a-gallon tax since 1993—by six cents a gallon in each of the next two years would cost drivers an estimated $164 billion over the next 10 years. But how much would it cost you?

The answer depends on how much you drive and how much gas your current vehicle guzzles. Use our simple calculator below to see how much your annual gas bill would go up if the federal gas tax is increased by 12 cents. Plus, discover how much additional MPG your car would need to offset the extra costs.

See Also: Kiplinger's Gas Tax Map


See Kiplinger's picks for fuel-efficient new cars »

Click inside the boxes to change default numbers.


Sources: University of Michigan Transportation Research Institute (avg. MPG for 2013 models = 24.7); Federal Highway Administration (avg. annual mileage per vehicle = 11,705); AAA (average price of regular gas as of 6/30/14 = $3.68)