Road Trip Cost Calculator

Estimate what the fuel for a road trip will cost — and split it fairly between everyone in the car. Enter the distance, your car’s economy, the gas price and how many are sharing.

How the Estimate Works

Road-trip fuel cost comes down to three numbers:

Fuel used = Distance ÷ Fuel economy Total cost = Fuel used × Price Per person = Total cost ÷ Travelers

The calculator normalizes US and UK mpg, km/L and L/100km, plus per-gallon and per-liter pricing, so you can mix whatever your dashboard and the pump show.

Get an Accurate Trip Distance

The estimate is only as good as the distance you feed it. Measure the real driving route — including detours and the return leg — with the route planner or driving distance tool before you calculate.

Tips for a Cheaper Trip

• Know your real economy. Highway cruising beats the city figure; check yours with the gas mileage calculator.
• Fill up off the highway, where fuel is usually cheaper.
• Split evenly and settle up with the per-person figure above.

For a single-driver estimate without splitting, use the fuel cost calculator.

Get Distance Measure

Download Distance Measure for iOS and start measuring in seconds.