Miles per Gallon (US) to Liters per 100 miles Converter
To convert Miles per Gallon (US) to Liters per 100 miles, use the formula L/100mi = 378.541295 / mpg. For example, 25 Miles per Gallon (US) equals 15.1416518 Liters per 100 miles. Enter your value in the calculator above. The formula and examples below show how to calculate it by hand.
Formula
L/100mi = 378.541295 / mpg
Divide 378.541295 by the positive Miles per Gallon (US) value to get Liters per 100 miles. Fuel consumed per distance and distance travelled per fuel volume have a reciprocal relationship.
Example Conversions
1 Miles per Gallon (US) (mpg-us)
378.541295 Liters per 100 miles (l-100mi)
5 Miles per Gallon (US) (mpg-us)
75.708259 Liters per 100 miles (l-100mi)
10 Miles per Gallon (US) (mpg-us)
37.8541295 Liters per 100 miles (l-100mi)
25 Miles per Gallon (US) (mpg-us)
15.1416518 Liters per 100 miles (l-100mi)
100 Miles per Gallon (US) (mpg-us)
3.78541295 Liters per 100 miles (l-100mi)
Conversion Table
| Miles per Gallon (US) (mpg-us) | Liters per 100 miles (l-100mi) |
|---|---|
| 0.1 | 3785.41295 |
| 0.5 | 757.08259 |
| 1 | 378.541295 |
| 2 | 189.2706475 |
| 5 | 75.708259 |
| 10 | 37.8541295 |
| 25 | 15.1416518 |
| 50 | 7.5708259 |
| 100 | 3.78541295 |
| 250 | 1.51416518 |
| 500 | 0.75708259 |
| 1000 | 0.378541295 |
How to Convert Manually
Use these steps to convert Miles per Gallon (US) values to Liters per 100 miles without the calculator.
- Write down the value in Miles per Gallon (US) (mpg-us) that you want to convert.
- Apply the formula: L/100mi = 378.541295 / mpg.
- For example, converting 10 Miles per Gallon (US) gives 37.8541295 Liters per 100 miles.
- Label the result as Liters per 100 miles (l-100mi).
About Miles per Gallon (US) and Liters per 100 miles
Miles per US gallon measures distance per fuel. Higher is better. It is the EPA window-sticker figure on every new car sold in the United States. Liters per 100 miles mixes metric fuel volume with mile distances, a hybrid unit appearing in some North American EV and plug-in hybrid comparisons alongside gallons-per-100-miles figures. The two scales are related by the formula L/100mi = 378.541295 / mpg. Miles per Gallon (US) is used in US car shopping and EPA ratings and in US road trip fuel planning. Liters per 100 miles is used in EV and hybrid consumption comparisons.
Precision and Rounding:Fuel economy units are reciprocal of each other: consumption (L/100 km) falls as efficiency (mpg, km/L) rises, so conversions are formula-based, not simple factors, and small mpg differences matter more at low values than high ones. One decimal place is standard for window stickers and trip computers.
Fuel-economy results use exact volume and distance definitions with the reciprocal formulas shown on each page (reference).
Worked Example
15Miles per Gallon (US) equals25.23608633Liters per 100 miles.
15 mpg-us -> 25.23608633 l-100mi
FAQ
How do I convert Miles per Gallon (US) to Liters per 100 miles?
Divide 378.541295 by the positive Miles per Gallon (US) value to get Liters per 100 miles. Fuel consumed per distance and distance travelled per fuel volume have a reciprocal relationship.
What is the formula for Miles per Gallon (US) to Liters per 100 miles?
The formula is L/100mi = 378.541295 / mpg.
How many Liters per 100 miles are in 1 Miles per Gallon (US)?
1 Miles per Gallon (US) equals 378.541295 Liters per 100 miles.
Can I convert Liters per 100 miles back to Miles per Gallon (US)?
Yes. 1 Liters per 100 miles equals 378.541295 Miles per Gallon (US), and the related converter can reverse the calculation.
What are common names for Miles per Gallon (US) and Liters per 100 miles?
Miles per Gallon (US) is shown as mpg-us and may also be searched as mpg, mpg US, miles per gallon. Liters per 100 miles is shown as l-100mi and may also be searched as L/100mi, liters per 100 miles.
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