Road Trip Fuel Cost Calculator

Road trip fuel cost calculator — estimate petrol cost from km per liter and fuel price. Use the free Road Trip Fuel Cost Calculator below — enter your values and get instant results, right in your browser. Fuel (L) = distance (km) ÷ mileage (km/L). Cost = fuel × price per liter. Return cost = one-way × 2. Example: 500 km ÷ 12 km/L = 41.7 L × Rs 260 = Rs 10,833 one way.

How to use the Road Trip Fuel Cost Calculator

Planning Lahore to Islamabad or Karachi to Hyderabad? Fuel is the biggest road-trip expense, and guessing it wrong ruins the budget. This road trip fuel cost calculator needs just three numbers — trip distance in km, your car's km-per-liter mileage and today's petrol price — and gives you liters needed plus one-way and return costs. Split the cost fairly among friends before anyone starts the engine.

  1. Enter the one-way trip distance in kilometers.
  2. Enter your car's fuel mileage in km per liter (check the Car Mileage tool).
  3. Enter today's petrol price per liter in rupees.
  4. Click the Calculate button.
  5. Read fuel needed, one-way cost and return-trip cost — add 10% buffer.

Formula

Fuel (L) = distance (km) ÷ mileage (km/L). Cost = fuel × price per liter. Return cost = one-way × 2. Example: 500 km ÷ 12 km/L = 41.7 L × Rs 260 = Rs 10,833 one way.

Worked example

Lahore to Islamabad, 380 km one way, car does 13 km/L, petrol Rs 260/L. Click Calculate. Fuel = 29.2 L, one-way cost = Rs 7,600, return = Rs 15,200. Four friends splitting it pay Rs 3,800 each — budget settled in seconds.

Frequently asked questions

Use the Car Mileage KM/L Calculator on this site: fill the tank, note the trip meter, drive, refill, and divide km by liters.

Yes — add about 10% buffer. AC, traffic jams and motorway hills all drink extra fuel.

No, only fuel. Add motorway tolls separately — e.g. Lahore–Islamabad toll is charged per trip.

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