Fuel Trip Cost Calculator
Estimate what a drive costs from distance, fuel economy, and gas price — in mpg or L/100km — with round-trip and cost-splitting options.
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Enter distance, fuel economy, and fuel price.
About Fuel Trip Cost Calculator
Choose your unit system — US (miles, mpg, dollars per gallon) or metric (kilometers, L/100km, price per liter) — and enter the distance, your car's fuel economy, and the local fuel price. The calculator shows how much fuel the trip needs and what it costs, doubles it for round trips, and splits the bill evenly among travelers.
Common uses
- Budget fuel for a road trip before leaving
- Split gas fairly on a carpool or group trip
- Compare the fuel cost of driving vs a train or flight deal
Example
Input
300 mi · 30 mpg · $3.60/gal · 2 people
Output
10 gal · $36.00 total · $18.00 each
Limitations
- Real-world economy varies with speed, load, and terrain — highway trips often beat the rated figure, city driving rarely does.