Miles/Gallon (US) to Liter/Kilometer Converter

Fuel Economy Converter

11 units available

Decimals:

From

To

2.352146

1 mpg = 2.352146 L/km

Formula:

L/km = mpg × 2.3521458357

With your value: 1 mpg = 2.35214584 L/km

Other Miles/Gallon (US) to Liter/Kilometer conversions

2 mpg to L/km 3 mpg to L/km 4 mpg to L/km 5 mpg to L/km 6 mpg to L/km 7 mpg to L/km 8 mpg to L/km

Miles/Gallon (US) to Liter/Kilometer Conversion Table

Miles/Gallon (US) (mpg)	Liter/Kilometer (L/km)
0.5	4.704292
1	2.352146
2	1.176073
5	0.470429
10	0.235215
15	0.15681
20	0.117607
25	0.094086
50	0.047043
100	0.023521
250	0.009409
500	0.004704
1000	0.002352

Liter/Kilometer to Miles/Gallon (US) Conversion Table

Liter/Kilometer (L/km)	Miles/Gallon (US) (mpg)
0.5	4.704292
1	2.352146
2	1.176073
5	0.470429
10	0.235215
15	0.15681
20	0.117607
25	0.094086
50	0.047043
100	0.023521
250	0.009409
500	0.004704
1000	0.002352

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Miles/Gallon (US) (mpg)

Fuel Economy

Exact conversion

Composite of a defined volume and a defined length. US and imperial gallons differ, so mpg figures are not interchangeable between them.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Liter/Kilometer (L/km)

Fuel Economy

Exact conversion

Composite of a defined volume and a defined length. US and imperial gallons differ, so mpg figures are not interchangeable between them.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Miles/Gallon (US) to Liter/Kilometer

This conversion uses an offset formula, so it cannot be described by a single multiplication factor.

Formula: L/km = mpg × 2.3521458357

Reverse: mpg = L/km × 2.3521458357

Step-by-Step Example

Start with your value in Miles/Gallon (US). For example: 5 mpg
Apply L/km = mpg × 2.3521458357
The result is: 0.470429 L/km

About Miles/Gallon (US)

Miles per gallon (mpg) is the standard measure of fuel economy in the United States.

Common uses: car window stickers, fuel costs, environmental metrics.

About Liter/Kilometer

The liter/kilometer (L/km) is a unit of fuel economy. The liter/kilometer scale is offset from the kilometre per litre scale, so converting it requires both a factor and an offset rather than a single multiplier. UnitConvertLab converts it against every other fuel economy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: fuel economy calculations, engineering and science, education.

Frequently Asked Questions

How many Liter/Kilometer are in 1 Miles/Gallon (US)?

There are exactly 2.3521458357 Liter/Kilometer in 1 Miles/Gallon (US).

What is the formula to convert Miles/Gallon (US) to Liter/Kilometer?

The formula to convert Miles/Gallon (US) to Liter/Kilometer is: L/km = mpg × 2.3521458357. For example, to convert 10 Miles/Gallon (US) to Liter/Kilometer, you would apply the formula to 10.

What is a Miles/Gallon (US)?