Planning a road trip and want to know roughly what you’ll spend on gas before you leave? The Fuel Cost Calculator estimates both fuel needed and total cost from your trip distance, vehicle efficiency, and current fuel price.
Works with any efficiency unit
Different countries measure fuel efficiency differently, so this tool supports all three common conventions:
- MPG (miles per gallon) — standard in the US
- L/100km (liters per 100 kilometers) — standard across Europe and Canada
- km/L (kilometers per liter) — common in parts of Asia
Pick whichever matches your vehicle’s spec sheet or dashboard readout, and the tool normalizes everything internally to give you a consistent answer.
Matching your fuel price unit
Enter the fuel price per gallon if you’re using MPG, or per liter if you picked one of the metric efficiency options — the tool assumes your price is quoted in the unit that matches your region’s typical efficiency measurement, since that’s how pumps actually display prices.
Both units shown for fuel needed
The result shows fuel needed in both gallons and liters, so you can cross-check against whichever unit your fuel gauge or trip computer uses, regardless of which unit you entered for the calculation.
Try it yourself
Enter your trip distance, your car’s fuel efficiency, and the current fuel price on the Fuel Cost Calculator to get an instant estimate before you hit the road.