Fuel Cost Calculator
Work out the fuel cost of a trip from distance, efficiency and fuel price.
Trip fuel cost
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Fuel used
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Cost each
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Results update as you type.
About this calculator
A fuel cost calculator estimates what a journey costs in fuel from the distance, your vehicle fuel efficiency and the price of fuel. Switch between miles-per-gallon and litres-per-100km to match your region.
Frequently asked questions
How is trip fuel cost calculated?
In mpg mode: fuel used = distance / mpg, then cost = fuel x price per gallon. In metric mode: litres = distance / 100 x (l/100km), then cost = litres x price per litre.
Does driving style change the result?
Yes. Real efficiency varies with speed, traffic, load and terrain, so treat this as an estimate based on your entered efficiency figure.
Results are estimates for general guidance only, not financial, medical or tax advice.