Kilometer/Gallon (US) to Liter/100km Converter
Quick answer
To convert Kilometer/Gallon (US) to Liter/100km, apply the formula: L/100km = km/gal × 378.5411789132. Therefore, 10 km/gal equals 37.854118 L/100km.
Formula: L/100km = km/gal × 378.5411789132. Reverse formula: km/gal = L/100km × 378.5411789132.
Convert Kilometer/Gallon (US) (km/gal) to Liter/100km (L/100km) online with our free unit converter. Calculated using formula: L/100km = km/gal × 378.5411789132. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Kilometer/Gallon (US) to Liter/100km
- Step 1 — start with the formula. L/100km = km/gal × 378.5411789132
- Step 2 — substitute your figure. Apply the formula to 10 km/gal.
- Step 3 — read the result. 10 km/gal = 37.854118 L/100km
- Step 4 — check it in reverse. km/gal = L/100km × 378.5411789132 returns 10 km/gal, which matches the figure you started with.
Fuel Economy Converter
11 units available
1 km/gal = 378.541179 L/100km
Formula:
L/100km = km/gal × 378.5411789132With your value: 1 km/gal = 378.54117891 L/100km
Other Kilometer/Gallon (US) to Liter/100km conversions
Kilometer/Gallon (US) to Liter/100km Conversion Table
| Kilometer/Gallon (US) (km/gal) | Liter/100km (L/100km) |
|---|---|
| 0.5 | 757.082358 |
| 1 | 378.541179 |
| 2 | 189.270589 |
| 5 | 75.708236 |
| 10 | 37.854118 |
| 15 | 25.236079 |
| 20 | 18.927059 |
| 25 | 15.141647 |
| 50 | 7.570824 |
| 100 | 3.785412 |
| 250 | 1.514165 |
| 500 | 0.757082 |
| 1000 | 0.378541 |
Liter/100km to Kilometer/Gallon (US) Conversion Table
| Liter/100km (L/100km) | Kilometer/Gallon (US) (km/gal) |
|---|---|
| 0.5 | 757.082358 |
| 1 | 378.541179 |
| 2 | 189.270589 |
| 5 | 75.708236 |
| 10 | 37.854118 |
| 15 | 25.236079 |
| 20 | 18.927059 |
| 25 | 15.141647 |
| 50 | 7.570824 |
| 100 | 3.785412 |
| 250 | 1.514165 |
| 500 | 0.757082 |
| 1000 | 0.378541 |
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.
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
Liter/100km (L/100km)
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 Kilometer/Gallon (US) to Liter/100km
This conversion uses an offset formula, so it cannot be described by a single multiplication factor.
Formula: L/100km = km/gal × 378.5411789132
Reverse: km/gal = L/100km × 378.5411789132
Step-by-Step Example
- Start with your value in Kilometer/Gallon (US). For example: 5 km/gal
- Apply L/100km = km/gal × 378.5411789132
- The result is: 75.708236 L/100km
Kilometer/Gallon (US) and Liter/100km Relationship
This conversion bridges the US Customary / Imperial and Metric (SI) 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: L/100km = km/gal × 378.5411789132. Understanding the relationship between Kilometer/Gallon (US) and Liter/100km is essential for accurate calculations in physics, engineering, commerce, and daily applications.
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.
About Liter/100km
The Liter/100km (symbol: L/100km) 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/100km: fuel economy calculations, engineering and science, education.
Frequently Asked Questions
- How many Liter/100kms are in 1 Kilometer/Gallon (US)?
- There are exactly 378.5411789132 Liter/100kms in 1 Kilometer/Gallon (US).
- What is the formula to convert Kilometer/Gallon (US) to Liter/100km?
- The formula to convert Kilometer/Gallon (US) to Liter/100km is: L/100km = km/gal × 378.5411789132. For example, to convert 10 Kilometer/Gallon (US)s to Liter/100kms, you would apply the formula to 10.
- 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 is a Liter/100km?
- The Liter/100km (symbol: L/100km) is a recognized unit in the Metric (SI) measurement framework, utilized within fuel economy applications for precision and standardized data representation.
- What are the common uses of Kilometer/Gallon (US)?
- The Kilometer/Gallon (US) is commonly used in fuel economy calculations, engineering and science, education.
Related Fuel Economy Conversions
Cite this page
UnitConvertLab. (2026). Kilometer/Gallon (US) to Liter/100km converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/km_per_gallon_us-to-liter_per_100km