Miles per US gallon fuel economy unit.
Miles per US gallon to Liters per kilometer Converter — mpg to L/km
Convert Miles per US gallon (mpg) to Liters per kilometer (L/km) using the exact conversion factor (1 miles per us gallon = 2.352145833 liters per kilometer). See the formula, worked examples, conversion table, history, and common uses.
Miles per US gallon to Liters per kilometer converter
Converter
Fuel Economy Converter
Convert MPG, km/L, L/100 km, and related transport fuel economy units.
Context values
Some unit families need one extra value for a physically accurate result.
Liters per kilometer fuel economy unit.
Normalize fuel economy to distance per volume, inverting consumption units when needed.
Fuel economy supports both distance-per-volume and volume-per-distance units.
Reserved above the conversion cards and below the converter.
About Converting Miles per US gallon to Liters per kilometer
Miles per US gallon and Liters per kilometer are two of the ways the world measures fuel efficiency, and converting between them is essential for comparing a US car's window-sticker rating to a European or Asian one. Miles per US gallon is most often used for us epa fuel economy window stickers on new vehicles.
Formula
Fuel economy formulas invert between distance-per-volume and volume-per-distance units as needed.
Efficiency-style units (like mpg or km/L) and consumption-style units (like L/100 km) measure the same underlying thing from opposite directions, so converting between the two families requires a reciprocal, not just a multiplication factor.
Simple example
1 mpg × 425143707400 = 2.352145833 L/km
1 miles per us gallon = 2.352145833 liters per kilometer.
Real-world example
30 mpg × 425143707400 = 0.0784048611 L/km
30 miles per us gallon = 0.0784048611 liters per kilometer.
Conversion table
| Miles per US gallon (mpg) | Liters per kilometer (L/km) |
|---|---|
| 10 mpg | 0.2352145833 L/km |
| 20 mpg | 0.1176072917 L/km |
| 30 mpg | 0.0784048611 L/km |
| 40 mpg | 0.0588036458 L/km |
| 50 mpg | 0.0470429167 L/km |
| 60 mpg | 0.0392024306 L/km |
Reverse conversion: Liters per kilometer to Miles per US gallon
2.352145833 L/km × 2.352146e-12 = 1 mpg
2.352145833 liters per kilometer = 1 miles per us gallon.
Fuel economy formulas invert between distance-per-volume and volume-per-distance units as needed.
For a page dedicated to this direction, see Liters per kilometer to Miles per US gallon.
Understanding the Miles per US gallon
Miles per US gallon (mpg) measures fuel economy. Miles per US gallon measures distance traveled per US gallon of fuel consumed — higher values mean better efficiency. It is classified as a US customary unit.
Where it's used: United States (vehicle fuel-economy ratings and labeling)
Uses of the Miles per US gallon today
- US EPA fuel economy window stickers on new vehicles
- Everyday US driver fuel-cost estimation
History of the Miles per US gallon
MPG became the standard US fuel-economy metric alongside the rise of mass automobile ownership in the 20th century, with the EPA establishing standardized testing and labeling requirements starting in the 1970s following the 1973 oil crisis.
Historical origin. Miles per US gallon was not the invention of a single named person; it developed through the process described above.
Understanding the Liters per kilometer (L/km)
Liters per kilometer fuel economy unit.
Miles per US gallon — sources
- US EPA — Fuel Economy Testing — Describes the standardized MPG testing and labeling process.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many liters per kilometer are in 1 miles per us gallon?
1 miles per us gallon equals 2.352145833 liters per kilometer, using the exact defined conversion factor rather than an estimate.
How do I convert miles per us gallon to liters per kilometer?
Fuel economy units sometimes need inversion rather than simple multiplication — the converter above and the formula section handle this automatically.
How do I convert liters per kilometer back to miles per us gallon?
Use the reverse factor: 1 liters per kilometer equals 2.352145833 miles per us gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a miles per us gallon?
Miles per US gallon (mpg) measures fuel economy. Miles per US gallon measures distance traveled per US gallon of fuel consumed — higher values mean better efficiency. It is classified as a US customary unit.
What is a liters per kilometer?
Liters per kilometer (L/km) is a unit of fuel economy.
Is the miles per us gallon to liters per kilometer conversion exact?
Yes. Both miles per us gallon and liters per kilometer are defined by fixed standards rather than physical artifacts, so the factor of 425143707400 used above is exact to as many digits as you choose to display.
Where is the miles per us gallon still used today?
United States (vehicle fuel-economy ratings and labeling)