Fuel Cost & MPG Calculator
Budget a trip's fuel, or work out your car's real efficiency.
Free to use · No account required
Enable JavaScript to use the interactive Fuel Cost & MPG Calculator. The input fields and calculations run in your browser.
How it works
Trip cost = distance ÷ efficiency × price. MPG (US) = miles ÷ gallons. L/100km = 235.215 ÷ MPG(US).