Fuel Cost Calculator
Estimate how much your trip will cost in fuel. Simple, fast and free.
Calculate your fuel cost
Enter your trip information below.
How fuel cost is calculated
Fuel cost depends on three main factors: the distance you travel, your vehicle's fuel economy, and the current fuel price.
First, the calculator determines how much fuel your vehicle is expected to use. It then multiplies the estimated fuel consumption by the fuel price.
Fuel cost formula
Fuel used = Distance ÷ Fuel economy
Trip cost = Fuel used × Fuel price
The calculation automatically adjusts to the distance and fuel economy unit you select, including miles, kilometers, MPG and km/L.
Example: 500-mile trip
Suppose you travel 500 miles in a vehicle that averages 30 MPG, and fuel costs $3.50 per gallon.
Fuel used = 500 ÷ 30 = 16.67 gallons
Trip cost = 16.67 × $3.50 = $58.33
In this example, the estimated fuel cost is $58.33.
Calculate your trip in seconds.
Enter your distance, vehicle fuel economy and current fuel price. HARTI Tools calculates the estimated fuel consumption and trip cost.
Enter your distance
Choose miles or kilometers.
Enter your fuel economy
Use MPG or km/L.
Enter fuel price
Choose price per gallon or liter.
When to use a fuel cost calculator
A fuel cost calculator can help you estimate travel expenses before you start a trip. It is useful when planning a road trip, comparing vehicles or estimating the cost of regular driving.
Plan a road trip
Estimate how much you may spend on fuel based on the total distance, vehicle fuel economy and fuel price.
Estimate commuting costs
Calculate the fuel cost of regular driving by entering your expected distance and vehicle fuel economy.
Compare vehicles
Use different fuel economy values to compare the estimated fuel cost of vehicles over the same distance.
Estimate a travel budget
Add the estimated fuel expense to your other travel costs when planning a trip budget.