Convert between European, British and American fuel consumption measures: US MPG to Imperial MPG to Litres/100km.
Including Fuel Consumption Calculator (below) - uses the amount of fuel added and the distance you travelled (with optional fuel cost calculator to show cost per mile or kilometer in US Dollars, British Pounds and Euros).
This calculator converts between various measures of fuel consumption:
There are 1.200949857 US gallons to 1 Imperial (UK) gallon (US gallons are smaller). Therefore 20 miles per US gallon (less fuel) is more economical than 20 miles per imperial (UK) gallon (more fuel).
Use this too if you know your distance and amount of fuel (and optionally your spending) and want to work out the fuel consumption that you achieved.
The best way to use this tool is: (a) Top up your fuel tank and zero your trip meter. (b) Make a trip in your car. (c) Top up your tank again, recording the amount of fuel added and the distance shown on your trip meter.
© Mark Porthouse 2016