CB
Everyday Math & Time tool
Fuel Cost Calculator
Estimate fuel spend from distance, efficiency and fuel price.
Fast outputSimple calculator, clear answer.
Mobile readyEasy to use on phone or desktop.
Related next stepsJump to nearby tools after.
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.
What this helps with
Use this tool for a fast estimate before checking a full spreadsheet, payslip, quote or planning document.
Worked example
A 120-mile trip at 40 mpg and £1.50 per litre costs about £20.46 in fuel.
Best use
Compare scenarios quickly by changing one or two inputs at a time.
Frequently asked questions
Why use litres and mpg together?
That is common in UK car discussions, so the tool converts automatically.
Does this include traffic or driving style?
No. It uses the efficiency figure you enter.
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