Fuel Cost Calculator
Find what a trip cost in fuel, and how efficient the car was. Enter the distance driven, the fuel you used, and the price per gallon.
- Free
- Works offline after your first visit
- Saves on this device
- No sign-up
- Updated
How it works
Miles per gallon is the distance divided by the gallons used. The fuel cost is the price per gallon times the gallons used.
The price is in US dollars per gallon. For a metric trip, convert a litre price to a gallon price first. The result covers fuel only, not wear, tolls or parking.
Worked example
Driving 300 mi on 12 gal of fuel works out to 25 miles per gallon. At $3.50 a gallon, the fuel cost for the trip is $42.00.
Questions
Why does my number differ from the car's display?
Trip computers and fuel gauges use their own estimates. The gallons you pay for at the pump are the most reliable amount to use.
Does this cover more than one trip?
No. Enter one trip's distance and the fuel used for that trip.
Can I use kilometres and litres?
Yes. Enter the distance in kilometres and the fuel in litres. The result still shows miles per gallon, and the cost uses the price per gallon.
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