Fuel Cost Calculator
Estimate how much fuel a trip will use and what it will cost, in metric or imperial units.
Calculate trip fuel cost
Choose your unit system, then enter distance, fuel economy and fuel price.
Result
Formula used
Fuel needed = Distance ÷ Fuel economy
Total cost = Fuel needed × Price per unit
How to use this calculator
- Choose metric or imperial units.
- Enter your trip distance and your vehicle's fuel economy.
- Enter the current fuel price and press Calculate.
FAQ
Frequently asked questions
How is trip fuel cost calculated?
Divide the trip distance by your vehicle's fuel economy to get fuel needed, then multiply by the price per unit of fuel.
Can I use miles and gallons instead of km and liters?
Yes. Switch to imperial units to enter distance in miles, economy in miles per gallon, and price per gallon.
Does this account for fuel prices changing during the trip?
No, it uses a single fuel price you enter. For a more accurate estimate, use an average expected price along your route.
Can I use this for electric vehicles?
Not directly, since EVs use energy consumption (like kWh per 100 km) rather than fuel economy. Use consistent distance-per-unit and price-per-unit figures if you adapt it.