18 Liter/Kilometer to Kilometer/Gallon (US)
Quick answer
18 Liter/Kilometer (L/km) equals
0.210301 km/gal
To convert 18 Liter/Kilometers to Kilometer/Gallon (US)s, multiply by 3.7854117891. Therefore, 18 Liter/Kilometer (L/km) equals 0.210301 Kilometer/Gallon (US) (km/gal).
Formula: km/gal = L/km × 3.7854117891. Calculation: 0.210301 km/gal. Reverse: L/km = km/gal × 3.7854117891.
Convert Liter/Kilometer (L/km) to Kilometer/Gallon (US) (km/gal) online with our free unit converter. Calculated using formula: km/gal = L/km × 3.7854117891. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Liter/Kilometer to Kilometer/Gallon (US)
- Step 1 — start with the formula. km/gal = L/km × 3.7854117891
- Step 2 — substitute your figure. Apply the formula to 18 L/km.
- Step 3 — read the result. 18 L/km = 0.210301 km/gal
- Step 4 — check it in reverse. L/km = km/gal × 3.7854117891 returns 18 L/km, which matches the figure you started with.
Fuel Economy Converter
11 units available
18 L/km = 0.210301 km/gal
Formula:
km/gal = L/km × 3.7854117891With your value: 18 L/km = 0.21030065 km/gal
Other Liter/Kilometer to Kilometer/Gallon (US) conversions
Liter/Kilometer to Kilometer/Gallon (US) Conversion Table
| Liter/Kilometer (L/km) | Kilometer/Gallon (US) (km/gal) |
|---|---|
| 0.5 | 7.570824 |
| 1 | 3.785412 |
| 2 | 1.892706 |
| 5 | 0.757082 |
| 10 | 0.378541 |
| 15 | 0.252361 |
| 20 | 0.189271 |
| 25 | 0.151416 |
| 50 | 0.075708 |
| 100 | 0.037854 |
| 250 | 0.015142 |
| 500 | 0.007571 |
| 1000 | 0.003785 |
Kilometer/Gallon (US) to Liter/Kilometer Conversion Table
| Kilometer/Gallon (US) (km/gal) | Liter/Kilometer (L/km) |
|---|---|
| 0.5 | 7.570824 |
| 1 | 3.785412 |
| 2 | 1.892706 |
| 5 | 0.757082 |
| 10 | 0.378541 |
| 15 | 0.252361 |
| 20 | 0.189271 |
| 25 | 0.151416 |
| 50 | 0.075708 |
| 100 | 0.037854 |
| 250 | 0.015142 |
| 500 | 0.007571 |
| 1000 | 0.003785 |
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.
Liter/Kilometer (L/km)
Fuel Economy
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
Kilometer/Gallon (US) (km/gal)
Fuel Economy
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 Liter/Kilometer to Kilometer/Gallon (US)
This conversion uses an offset formula, so it cannot be described by a single multiplication factor.
Formula: km/gal = L/km × 3.7854117891
Reverse: L/km = km/gal × 3.7854117891
Step-by-Step Example
- Start with your value in Liter/Kilometer. For example: 5 L/km
- Apply km/gal = L/km × 3.7854117891
- The result is: 0.757082 km/gal
Liter/Kilometer and Kilometer/Gallon (US) Relationship
This conversion bridges the Metric (SI) and US Customary / Imperial measurement systems, commonly required when translating scientific data, international engineering specifications, or trade standards. Unlike simple multiplicative factors, this conversion follows an affine calculation model: km/gal = L/km × 3.7854117891. Understanding the relationship between Liter/Kilometer and Kilometer/Gallon (US) is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Liter/Kilometer
The Liter/Kilometer (symbol: L/km) is a recognized unit in the Metric (SI) measurement framework, utilized within fuel economy applications for precision and standardized data representation.
Common uses of Liter/Kilometer: fuel economy calculations, engineering and science, education.
About Kilometer/Gallon (US)
The Kilometer/Gallon (US) (symbol: km/gal) is a recognized unit in the US Customary / Imperial measurement framework, utilized within fuel economy applications for precision and standardized data representation.
Common uses of Kilometer/Gallon (US): fuel economy calculations, engineering and science, education.
Frequently Asked Questions
- What is 18 Liter/Kilometer in Kilometer/Gallon (US)?
- 18 Liter/Kilometer equals 0.210301 Kilometer/Gallon (US).
- How many Kilometer/Gallon (US)s are in 1 Liter/Kilometer?
- There are exactly 3.7854117891 Kilometer/Gallon (US)s in 1 Liter/Kilometer.
- What is the formula to convert Liter/Kilometer to Kilometer/Gallon (US)?
- The formula to convert Liter/Kilometer to Kilometer/Gallon (US) is: km/gal = L/km × 3.7854117891. For example, to convert 10 Liter/Kilometers to Kilometer/Gallon (US)s, you would apply the formula to 10.
- What is a Liter/Kilometer?
- The Liter/Kilometer (symbol: L/km) is a recognized unit in the Metric (SI) measurement framework, utilized within fuel economy applications for precision and standardized data representation.
- What is a Kilometer/Gallon (US)?
- The Kilometer/Gallon (US) (symbol: km/gal) is a recognized unit in the US Customary / Imperial measurement framework, utilized within fuel economy applications for precision and standardized data representation.
- What are the common uses of Liter/Kilometer?
- The Liter/Kilometer is commonly used in fuel economy calculations, engineering and science, education.
Related Fuel Economy Conversions
Cite this page
UnitConvertLab. (2026). 18 Liter/Kilometer to Kilometer/Gallon (US). UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/18-liter_per_km-to-km_per_gallon_us