Gas Cost Calculator - Trip Fuel Cost Estimator
Calculate fuel cost for any road trip from distance, MPG, and gas price.
Tool Interface
Gas Cost Calculator
Estimate fuel cost for any trip from distance, mileage, and gas price.
How to use
Enter your one-way trip distance in miles, your vehicle miles per gallon, and the current gas price. Tick round trip if you are driving back too. Press Calculate to see gallons needed and total cost. Reset clears everything.
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About This Tool
Frequently Asked Questions (FAQ)
How is my trip fuel cost calculated?
Enter your trip distance, your vehicle fuel economy in MPG and the current gas price. The calculator divides distance by MPG and multiplies by the price per gallon.
What does the round trip option do?
It doubles the distance before calculating, so you get the full there-and-back fuel cost without entering the trip twice.
Where do I find my car fuel economy?
Check your dashboard display, the EPA rating on fueleconomy.gov, or track it yourself by dividing miles driven by gallons used at fill-up.
Does it account for traffic or driving style?
It uses the MPG figure you provide, so for the most realistic estimate enter your real-world average rather than the highway rating.
Is the gas cost calculator free?
Yes. It is free to use with no signup and no limits.