US mpg - Fuel Economy Conversions
US miles per gallon is a unit of fuel economy in US Customary Units. US miles per gallon is calculated as the number of miles traveled per US gallon (not to be confused with Imperial gallon). The symbol for US miles per gallon is US mpg.
Select a Conversion
Select one of the US mpg conversions below:
Unit Summary
This table provides a summary of the Fuel Economy units within their respective measurement systems.
| Unit | Symbol | Measurement System |
|---|---|---|
| US miles per gallon | US mpg | US Customary Units |
| Imperial miles per gallon | Imperial mpg | Imperial System |
| Litres per 100 kilometers | L/100km | Metric System |
Note: There is a difference between US Customary Units and the Imperial System when it comes to some Fuel Economy conversions. The US gallon contains 128 US fl oz, while the Imperial gallon contains 160 Imp fl oz. So make sure you are converting using the correct system of measurement.
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