Gas Cost Calculator
Work out what a road trip will cost in fuel from the distance, your fuel economy and the current price per gallon. Free.
Scan to open on your phone
Point your phone camera at the code to open this tool.
Work out what a road trip will cost in fuel from the distance, your fuel economy and the current price per gallon. Free.
How to use Gas Cost Calculator
- Open the toolNo signup and nothing to install; it works as soon as the page loads.
- Set “Distance”
- Set “Fuel economy”
- Set “Price per gallon”
- Set “Units”
- Read the resultChange any input and the result is recalculated immediately.
Worked example with the defaults
- FUEL COST FOR THE TRIP · 16.67 gallons at $3.50 each
- $58.33
Nothing you enter leaves your device
All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.
That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.
What this tool does not do
Gas Cost Calculator only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.
It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.
Frequently Asked Questions
- How is the fuel cost calculated?
- Distance divided by your fuel economy gives the gallons used, which is then multiplied by the price per gallon.
- Where do I find my fuel economy?
- It is usually shown on the window sticker and in your car's trip computer as MPG (miles per gallon) or L/100km.