Fuel Cost Calculator
Estimate fuel spend from distance, efficiency and fuel price.
Use the fuel cost calculator
Estimate fuel spend from distance, efficiency and fuel price.
Trip distance in miles
Vehicle efficiency in miles per gallon
Pump price per litre
Enter your values to see the result.
Fuel Cost Calculator formula
Fuel used = distance ÷ mpg. Convert gallons to litres, then multiply by price per litre.
Use this tool for a fast estimate before checking a full spreadsheet, payslip, quote or planning document.
A 120-mile trip at 40 mpg and £1.50 per litre costs about £20.46 in fuel.
Compare scenarios quickly by changing one or two inputs at a time.
Frequently asked questions
That is common in UK car discussions, so the tool converts automatically.
No. It uses the efficiency figure you enter.
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