How to Convert KM/LTR to MPG

Convert kilometers per liter to miles per gallon to compare fuel economy.

Miles per gallon (mpg) is the standard measure of fuel efficiency for gasoline vehicles in the United States. A car with a higher mpg travels farther on a gallon of gas and has lower fuel costs than one with a lower mpg. The United States requires all new cars and light-duty trucks sold in the country to display fuel economy information, such as city and highway mpg, on a window sticker label. You can convert kilometers per liter, which is used to measure a vehicle's fuel economy in other countries, into mpg to compare a vehicle's fuel economy with other American vehicles.

Things You'll Need

• Calculator

Instructions

1. Input the number of kilometers per liter into the formula "(kilometers/liter) x (1 mile/1.609 kilometers)" to convert to miles per liter. For example, if a vehicle gets 10 kilometers/liter, the formula is "(10 kilometers/liter) x (1 mile/1.609 kilometers)."

2. Divide 10 by 1.609, which equals 6.215. Kilometers in the numerator and denominator cancel each other out, leaving 6.215 miles/liter.

3. Input 6.215 miles per liter into the formula "(miles/liter) x (3.785 liters/U.S. gallon)" to convert to miles per gallon. The formula is "(6.215 miles/liter) x (3.785 liters/U.S. gallon)."

4. Multiply 6.215 by 3.785, which equals 23.524. Liters in the numerator and denominator cancel each other out, leaving 23.524 miles per gallon.

References

• U.S. Environmental Protection Agency: Fuel Economy Label
• University of Arizona: Conversion Table

Resources

• Ohio State University Department of Economics: Metric/Nonmetric and Dollar/Euro Convertor