This fuel cost calculator estimates how much fuel a trip needs and what it costs, from the distance, your vehicle’s fuel economy, and the fuel price. Enter the values above.
Formulas
Fuel needed = Distance ÷ Fuel economy Cost = Fuel needed × Price per unit
Example
500 miles at 30 mpg, $3.50/gal: fuel = 500 ÷ 30 = 16.7 gal, cost = $58.33.
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Frequently Asked Questions
How do I calculate fuel cost for a trip?
Divide the distance by your fuel economy to get fuel used, then multiply by the price per gallon or liter.
How much fuel for 500 miles at 30 mpg?
About 16.7 gallons, which at $3.50 per gallon costs roughly $58.
Does driving style change fuel cost?
Yes. Higher speeds, hard acceleration, and idling lower your economy and raise the cost.