Fuel Cost Calculator

Enter your route and pick your exact car. Get the road distance, drive time and fuel cost.

Your vehicle

No car? Skip this and type your own MPG below.

Your trip

Fuel Cost Calculator by AIPreciseTools Β· Open the full calculator β†—

Mileage for your exact car

Pick the year, make, model and engine, and the calculator loads the official EPA fuel economy ratings for that vehicle: city, highway and combined. These are the same figures printed on the window sticker and published at fueleconomy.gov, and they cover cars and light trucks sold in the U.S. from 1984 to today.

Two versions of the same model can differ by several MPG depending on engine, transmission and drive type, which is why the last menu matters. The EPA lists vehicles by powertrain, so a trim such as "Sport" or "Touring" appears under whichever engine and transmission it has.

Press Save to my garage and the car is remembered in this browser. Next time, tap it and go straight to the trip.

Trip distance from your route

Type where you are starting and where you are going, and pick each place from the list. The calculator finds the fastest driving route on real roads and fills in the distance and the drive time. Add up to four stops in between for a road trip. A drive time assumes no traffic and no breaks, so plan extra.

Routes come from openrouteservice, built on OpenStreetMap data. You can always type the distance yourself instead.

How trip fuel cost is calculated

Gas: Gallons = Miles Γ· MPG Cost = Gallons Γ— Price per gallon Metric: Liters = km Γ— (L per 100 km) Γ· 100 Cost = Liters Γ— Price per liter Electric: kWh = Miles Γ— (kWh per 100 mi) Γ· 100 Cost = kWh Γ— Price per kWh

Example: a 250-mile drive in a car that gets 28 MPG uses 8.93 gallons. At $3.25 a gallon that is $29.02, or $58.04 for the round trip. Driving 12,000 miles a year in the same car costs about $1,393 in fuel.

Choose mostly city, mixed or mostly highway to switch between the EPA city, combined and highway ratings. Real-world mileage also depends on speed, load, tires, weather and how you drive. Above about 60 mph, fuel economy falls quickly, so pad the estimate a little for fast interstate trips.

Fuel prices

When you pick a car, the price is pre-filled with the current U.S. average for the fuel it takes (regular, premium, diesel or electricity), as published by the EPA. Prices vary a lot by state and station, so replace it with what you actually pay.

Frequently asked questions

How do I calculate gas cost for a road trip?

Enter your starting point and destination to get the driving distance, pick your car to load its MPG, and check the fuel price. The cost is the distance divided by MPG, times the price per gallon. Tick round trip to double it.

How do I find my car's gas mileage by year, make and model?

Use the menus at the top of this page. Choose the year, make, model and then the engine and transmission, and the official EPA city, highway and combined MPG appear instantly.

Why is my real MPG lower than the EPA rating?

EPA ratings come from standardized lab tests. Short trips, cold weather, high speeds, roof racks, under-inflated tires and aggressive driving all lower real-world mileage, often by 10 to 20%.

How do I calculate the cost to charge an electric car for a trip?

Pick your EV above. The calculator uses its EPA energy use in kWh per 100 miles and your electricity price. For example, 250 miles at 25.5 kWh per 100 miles is 63.8 kWh, which costs about $10.84 at $0.17 per kWh. Public fast chargers usually cost two to three times the home rate.

How do I convert L/100 km to MPG?

MPG (US) is about 235.21 divided by L/100 km. For example, 8 L/100 km is about 29.4 MPG.

Was this calculator helpful?

Sources