Divide the trip distance by your fuel economy to get the fuel needed, then multiply by the price per gallon or liter. A 400 mile trip in a car that gets 32 mpg needs 12.5 gallons, which is 45 dollars at 3.60 per gallon. A free gas cost calculator runs the numbers in your browser for any distance, economy and price.
Free gas cost calculator. Estimate the fuel cost of a trip from distance, your vehicle fuel economy and the price you pay, plus cost per person.
Open Gas / Fuel Cost Calculator → Free toolPlan a road trip budget: enter distance, fuel economy, price, and passengers to see total fuel cost and cost per person.
Open Road Trip Fuel Calculator → Free toolCalculate the fuel cost of any trip from distance, fuel economy, and gas price. Works in MPG or L/100km with instant results.
Open Fuel Cost Calculator →Trip distance, your vehicle fuel economy, and the local fuel price. Distance comes from your maps app, fuel economy from your dashboard trip computer or the window sticker figure, and price from whatever stations charge along the route. Fuel cost = distance / economy x price. If you plan in metric, the same idea applies: liters used = distance in km x (L/100km figure) / 100.
Double the distance for a round trip, and remember highway economy is usually better than the city figure, so trips skew cheaper per mile than commuting. If you are sharing the drive, a road trip calculator that divides the total by passengers shows each person share, which makes settling up painless.
Fuel cost = distance divided by fuel economy, times price. In metric: distance in km x L/100km / 100 x price per liter.
For a mostly-highway trip use the highway figure or your trip computer average. City mpg will overestimate the cost.
Yes. The road trip calculator divides the fuel total by the number of passengers.