Fuel Cost Calculator
Enter a distance, your car's fuel consumption and your local fuel price to calculate the cost of a trip — or a recurring weekly or monthly drive.
Enter this to see a recurring weekly/annual cost
Fuel cost for a 300km trip at $2/L.
How this is calculated
In metric mode, we calculate litres used as distance ÷ 100 × your L/100km consumption figure, then multiply by price per litre.
In imperial mode, we calculate gallons used as distance ÷ MPG, then multiply by price per gallon.
Formula
Metric: litres used = (distance ÷ 100) × L/100km, cost = litres × price per litreImperial: gallons used = distance ÷ MPG, cost = gallons × price per gallonWorked example
A 300-mile trip at 30 MPG and $4/gallon costs about $40 in fuel.
This calculator provides an estimate based on the numbers and assumptions you enter. It’s for general informational purposes and does not constitute financial, tax, legal, investment or credit advice. See our disclaimer and how we calculate pages for more detail.
Frequently asked questions
Convert one of the two figures to match unit systems first — this calculator keeps distance, consumption and price in a single consistent system (metric or imperial) to avoid errors.