Miles per Gallon (US) to Liters per 100 miles Converter

A value of 1 Miles per Gallon (US) converts to 378.541295 Liters per 100 miles; the two units measure the same quantity on different scales, so the relationship is not a fixed factor. Use the calculator above for instant results, or follow the formula, worked examples, and reference table below.

Formula

l-100mi = convert(mpg-us → L100km → l-100mi)

Convert Miles per Gallon (US) to the base unit (L100km), then convert to Liters per 100 miles.

Example Conversions

0 Miles per Gallon (US) (mpg-us)

Invalid Liters per 100 miles (l-100mi)

1 Miles per Gallon (US) (mpg-us)

378.541295 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)

212 Miles per Gallon (US) (mpg-us)

1.785572146 Liters per 100 miles (l-100mi)

Conversion Table

Common conversion values from Miles per Gallon (US) to Liters per 100 miles
Miles per Gallon (US) (mpg-us) Liters per 100 miles (l-100mi)
0 Invalid
1 378.541295
10 37.8541295
20 18.92706475
25 15.1416518
32 11.82941547
37 10.23084581
50 7.5708259
75 5.047217266
100 3.78541295
212 1.785572146
273.15 1.385836701

How to Convert Manually

Use these steps to convert Miles per Gallon (US) values to Liters per 100 miles without the calculator.

  1. Write down the value in Miles per Gallon (US) (mpg-us) that you want to convert.
  2. Apply the formula: l-100mi = convert(mpg-us → L100km → l-100mi).
  3. For example, converting 10 Miles per Gallon (US) gives 37.8541295 Liters per 100 miles.
  4. 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 units are related by a formula rather than a fixed factor; a value of 1 Miles per Gallon (US) corresponds to 378.541295 Liters per 100 miles. Miles per Gallon (US) to Liters per 100 miles conversion comes up most often in US car shopping and EPA ratings and in US road trip fuel planning, typically when figures need restating for 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.

Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).

Worked Example

15 Miles per Gallon (US) equals 25.23608633 Liters per 100 miles.

15 mpg-us -> 25.23608633 l-100mi

FAQ

How do I convert Miles per Gallon (US) to Liters per 100 miles?

Convert Miles per Gallon (US) to the base unit (L100km), then convert to Liters per 100 miles.

What is the formula for Miles per Gallon (US) to Liters per 100 miles?

The formula is l-100mi = convert(mpg-us → L100km → l-100mi).

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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