Fuel Consumption Calculator
Calculate MPG, L/100km, km/L, trip cost and estimated CO2 from fuel used and distance travelled.
Hit Calculate to see your result
Cost appears after calculation
Metrics appear after calculation
Your explanation appears here
For best accuracy, fill the tank, reset the trip meter, drive normally, then record litres needed at the next refill.
Your plan appears after calculation
Test lower fuel use or a different fuel price without changing your main result.
Calculate your baseline first
The calculator converts distance to kilometres and miles, then calculates L/100km, km/L, US MPG and UK MPG from the litres used and distance travelled.
MPG increases as efficiency improves, while L/100km decreases as efficiency improves. They describe the same trip from opposite directions.
Trip cost uses your entered price per litre. CO2 is a simple gasoline estimate using 2.31 kg CO2 per litre; real emissions vary by fuel blend, vehicle condition and driving style.
Results are estimates generated locally in your browser from the fuel and distance values you enter. They are for informational purposes only and may differ from onboard computer readings, official ratings or real-world costs. Fuel price, fuel type, traffic, tyre pressure, load, terrain and driving style can materially change results. VisionVix accepts no liability for decisions based on this output.
