Road Trip Gas Cost
Enter the distance, your car's gas mileage and the price at the pump: instantly see what the trip costs in total and per passenger, tolls included.
How to calculate the gas cost of a road trip
The math is simple: miles ÷ MPG = gallons needed, and gallons × price per gallon = your fuel bill. You'll find your car's real-world gas mileage on the trip computer or the EPA label: a typical sedan gets 30–35 MPG on the highway, an SUV or pickup 20–25, and a hybrid can top 45–55. Keep in mind that steady highway cruising burns less fuel than stop-and-go city driving, while a full load, air conditioning or a roof box can raise consumption by 10–20%. Add tolls if your route uses a turnpike or toll bridges, and check the round-trip box to double both distance and tolls.
Splitting the cost between passengers
If you're carpooling, the "people in the car" field divides the total into equal shares, perfect for road trips, commutes and shared rides. Remember that gas and tolls are only the out-of-pocket costs of the trip: the true cost per mile of owning a car (tires, wear, insurance, depreciation) is considerably higher, as AAA's annual driving-cost studies show. Treat the result as a fair estimate of the direct expenses, exactly what you need to split the cost evenly with your passengers. This tool provides estimates only.