Free tool
Gas cost calculator for road trips
How much will gas cost for your trip? Enter the miles, find your car or type its mpg, and we’ll use the latest US average gas price. Nothing you enter leaves your browser.
Enter the distance, pick your vehicle or enter its fuel use, and check the fuel price to see what the trip costs.
This is an estimate, not a quote. Real fuel use depends on how you drive, traffic, hills and road surface, the load, tyre pressure, air conditioning and the state of the vehicle. Vehicle figures are typical, not your car’s, and the distance you actually drive may differ from the map. Pump prices change, often monthly.
Questions
- What are fuel prices in United States?
- Gas was USD 4.27 a gallon and diesel USD 6.35 a gallon. These are US average prices for regular gas and on-highway diesel, including taxes, dated 26 October 2026.
- What does 100 miles cost in fuel in United States?
- About USD 14.23 in gas, for a vehicle doing 30 mpg. That vehicle is only an example, so enter your own figure.
- Is this the price I’ll pay?
- It’s a starting point. Change the price to what you paid at the pump, and the sums update.
Prices dated 26 October 2026. Source: Gasoline and Diesel Fuel Update (EIA). This is an estimate.
Work out a delivery quote for United States, or use the calculator for another country.