Gas Trip Cost Calculator
Work out the fuel cost of a specific trip from its distance, your economy and fuel price.
The cost of a particular journey
For a specific trip — a commute, a road trip, a delivery run — the fuel cost is the distance, your vehicle's economy and the price of fuel combined. This works it out, so you can budget a journey, decide whether to drive or take another option, or split the fuel fairly with the people travelling with you.
Enter the trip distance, your economy and the fuel price to see the cost.
Round trips and real economy
Two things make a trip estimate accurate. Remember to double the distance for a round trip if you are coming back — an easy thing to forget that halves the true cost. And use your real-world fuel economy rather than the optimistic official figure, since a long motorway trip and a stop-start city crawl consume very differently. For sharing costs with passengers, the total fuel figure divided among everyone is a fair and simple way to split.
Questions & answers
Should I include the return journey?
Yes — for a round trip, double the one-way distance, an easy thing to forget that otherwise halves the true cost.
How do I split the cost with passengers?
Divide the total fuel figure among everyone travelling — a simple, fair way to share the cost of the trip.
Is anything uploaded?
No. The calculation happens in your browser.