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Fuel Cost Calculator

Cost of a car journey by distance and fuel price

Fuel Cost Calculator

Fuel Cost Calculator

Cost of a car journey by distance and fuel price

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A fuel cost calculator estimates how much you spend on petrol or diesel for a journey or over a period, based on distance, vehicle fuel efficiency, and fuel price. It helps compare routes, vehicles, or modes of transport by cost.

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Tip: Tyre pressure has a bigger impact on fuel economy than most drivers realise — tyres under-inflated by just 8 PSI reduce fuel efficiency by up to 3%.

  1. 1Measure or estimate the journey distance in miles or km
  2. 2Find your vehicle's fuel consumption (MPG, L/100km, or km/L)
  3. 3Check the current fuel price per litre or gallon
  4. 4Fuel cost = Distance / Efficiency × Price per unit of fuel
200 miles · 35 MPG · £1.50/litre=~£24.50200÷35 = 5.71 gallons × 4.546 × £1.50
300 km · 7 L/100km · £1.55/L=£32.55300×0.07×£1.55

Fun Fact

The average UK driver covers about 7,400 miles per year and spends approximately £1,200–1,800 on fuel depending on vehicle efficiency.

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