km/L
$

Calculate trip fuel costs, split expenses with passengers, and compare car efficiency.

Calculate Fuel Costs | Plan Trips & Split Expenses

Estimate your total gas spend instantly based on distance, fuel efficiency, and current prices.

💡 How It Works

Stop guessing your travel budget. Whether you’re commuting or heading out on a cross-country road trip, this tool provides a precise breakdown of your fuel expenses.

Going with a group? Use the built-in split feature to calculate exactly what everyone owes before you hit the road.

🚀 Key Features

  • Toggle Round Trips: Double your distance with one click to cover your return journey.
  • Split the Bill: Enter the number of passengers to see the cost per person instantly.
  • Compare Vehicles: Check different fuel efficiency ratings to find the most cost-effective car for your trip.
  • Switch Units: Toggle between Imperial (MPG) and Metric (km/L) for international travel.

🧐 FAQ

Which MPG rating should I use? Use "Highway MPG" for long road trips and "City" or "Combined" for daily commutes to get the most accurate estimate.

Is my data private? Yes. All calculations happen locally in your browser. We never see, store, or share your trip details.

⛽ Road Trip Pro-Tips

  • Watch Your Speed: Most vehicles hit peak efficiency between 50 and 60 mph. Driving faster increases aerodynamic drag and burns significantly more fuel.
  • Check Tire Pressure: Under-inflated tires can drop fuel economy by 0.2% for every 1 psi lost. Check your pressure before you leave to save at the pump.
  • Know Your Units: While the US and UK use Miles Per Gallon (MPG), most of Europe and Asia use kilometers per liter (km/L) or liters per 100km. Ensure your settings match your rental car's dashboard.