Gas Cost Calculator
Calculate exactly how much fuel you'll need and what it will cost for your next road trip.
Trip Details
Total Fuel Cost
$0.00
Total Distance
0 mi
Gallons Used
0 gal
Cost does not include tolls or vehicle wear and tear.
Budgeting Your Next Road Trip
Whether you're planning a cross-country family vacation or just commuting to a new job, gas prices can take a major bite out of your budget. Knowing exactly how much a trip will cost allows you to split expenses fairly with friends or decide if driving is actually cheaper than flying.
How to Use This Tool
Enter the total distance of your trip, your vehicle's average MPG (miles per gallon), and the current price of gas. The tool instantly calculates the total amount of fuel you will use and the exact financial cost of the trip.
Frequently Asked Questions
Most modern cars have a digital display on the dashboard that shows average MPG. Alternatively, you can look up your specific make and model on the EPA's Fuel Economy website.
Yes. Gas mileage usually peaks at speeds around 50 mph and decreases rapidly at speeds above 60 mph. Driving 75 mph instead of 65 mph can reduce fuel economy by up to 15%.
At low speeds (city driving), rolling the windows down is more fuel-efficient. At highway speeds, the aerodynamic drag from open windows uses more gas than running the AC.