How to use the Fuel Cost Calculator
- Choose units and enter the distance.
- Enter your vehicle’s fuel efficiency and the fuel price.
- Tick round trip if you are coming back. Press Calculate.
Formula
Fuel = distance ÷ km per litre (or distance × L/100 km ÷ 100, or miles ÷ mpg). Cost = fuel × price.
Examples
- 350 km at 15 km/L with fuel at 105 per litre: 23.33 L → 2,450.
- 220 miles at 28 mpg, $3.40/gal: 7.86 gal → $26.71.
Frequently asked questions
Why is my real mileage lower?
City traffic, air-conditioning, roof loads, tyre pressure and high speeds all raise consumption compared with official figures.