⛽ Fuel Cost Calculator
Enter a distance, your car's MPG, and the price per gallon to estimate the gallons used and what the drive costs — add your annual mileage for a yearly fuel bill too.
💵 Distance, MPG & Price
What is a Fuel Cost Calculator?
It puts a dollar figure on driving. Feed it a distance, your car's fuel economy, and the current pump price, and it works out how much fuel the trip burns and what that costs. Add your yearly mileage and it scales the same maths up to an annual fuel bill — the number that really separates an economical car from a thirsty one.
Use it to budget a road trip, compare the running cost of two vehicles, or see how much a more efficient car would save over a year. The figures are estimates for planning — plug in your measured MPG and local price for the closest result.
❓ Frequently Asked Questions
How is the cost of a trip calculated?
First the calculator works out how much fuel the drive needs by dividing the distance by your car's fuel economy (gallons = miles ÷ MPG), then multiplies that by the price per gallon. So a 300-mile trip in a 30-MPG car at $3.50 a gallon uses 10 gallons and costs $35.
What is the annual cost field for?
Enter how many miles you drive in a year and the calculator estimates your yearly fuel bill at the same MPG and price. It's a quick way to see the running cost of a commute or to compare two cars — a 25-MPG vehicle versus a 40-MPG one over 12,000 miles can differ by hundreds of dollars a year.
How can I lower my fuel cost?
Smoother acceleration and braking, keeping tires properly inflated, removing roof racks and excess weight, combining errands, and easing off at highway speeds all help. Improving real MPG even a few points compounds over a year of driving, which is why the annual figure here is useful for spotting savings.
Will my real cost match the estimate?
It's a close starting point, but these are estimates for planning; actual fuel use and price vary by driving conditions, traffic, terrain, and local pump prices. Use your measured MPG and current local price for the tightest estimate.