In the United States we buy our gasoline by the gallon and measure our distances in miles. Our fuel economy is measured in miles per gallon, which is the number of miles traveled, divided by the number of gallons consumed. In countries that use the metric system, fuel is usually sold by the liter and distances are measured in kilometers. Fuel economy is specified in kilometers per liter. It's easy to convert from kilometers per liter to miles per gallon.
Multiply the number of kilometers by .621.
For example, let's say a Canadian car gets 12 km per liter.
12 x .621 = 7.452.
This is the number of miles.
Multiply the number of liters by .264.
In our example we have one liter, 1 x .264 = .264.
This is the number of gallons.
Divide the number of miles by the number of gallons.
7.452 / .264 = 28.23.
This is the number of miles per gallon.
