Authoritative definitions of the International System of Units and SI prefixes.
Dedicated unit pair
Litres per 100 kilometres to Miles per US gallon
Convert L/100 km to mpg (US) instantly, then review the formula, assumptions, and rounding guidance.
Fuel consumption & efficiencyInstant result
Decimals
Formula Convert L/100 km to litres per 100 kilometres, then convert to mpg (US). 1 L/100 km = 235.2146 mpg (US)
Common examples
One value, several units
Miles per US gallon235.2146 mpg (US)
Miles per imperial gallon282.4809 mpg (imp)
Kilometres per litre100 km/L
Conversion table
| L/100 km | mpg (US) |
|---|---|
| 1 L/100 km | 235.2146 mpg (US) |
| 2 L/100 km | 117.6073 mpg (US) |
| 5 L/100 km | 47.0429 mpg (US) |
| 10 L/100 km | 23.5215 mpg (US) |
| 25 L/100 km | 9.4086 mpg (US) |
| 50 L/100 km | 4.7043 mpg (US) |
| 100 L/100 km | 2.3521 mpg (US) |
Conversion chart
1 L/100 km235.2146 mpg (US)
5 L/100 km47.0429 mpg (US)
10 L/100 km23.5215 mpg (US)
25 L/100 km9.4086 mpg (US)
50 L/100 km4.7043 mpg (US)
Worked example
8 L/100 km is approximately 29.4 US mpg.
Unit definition
Litres per 100 kilometres (L/100 km) This unit is defined through the displayed non-linear relationship to litres per 100 kilometres.
Unit history
Litres per 100 kilometres is represented here using its modern SI definition or an internationally accepted relationship to an SI base unit.
Step by step
1. Parse the value, including fractions.
2. Convert L/100 km to litres per 100 kilometres.
3. Convert the base value to mpg (US) and apply your display precision.
Important
Fuel economy and fuel consumption are reciprocal measures; zero is not a valid input.
Understand the result before using it
Litres per 100 kilometres to Miles per US gallon converts a value measured in Litres per 100 kilometres (L/100 km) into the equivalent value in Miles per US gallon (mpg (US)). The numerical value changes because the size and definition of the selected unit changes; the underlying quantity does not.
Calculated result
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.
Formula, assumptions, and example
Formula
Convert L/100 km to litres per 100 kilometres, then convert the base value to mpg (US).
Assumptions
- Litres per 100 kilometres and Miles per US gallon represent the same fuel consumption & efficiency quantity.
- The input is expressed in L/100 km; the output is expressed in mpg (US).
- Fuel economy and fuel consumption are reciprocal measures; zero is not a valid input.
Worked example
1 L/100 km = 235.214583 mpg (US). For another value, apply the same relationship and round only to the precision your source measurement supports.
When to use it
Good uses
- Read a L/100 km measurement in a document that expects mpg (US).
- Compare a litres per 100 kilometres value with a value reported in miles per us gallon.
- Check the L/100 km-to-mpg (US) arithmetic before copying the result into another calculation.
Limitations
Common mistakes to avoid
- Fuel consumption and fuel economy are reciprocal; zero and negative values are not physically valid inputs.
- Round the output to a precision justified by the original measurement.
- Verify safety-critical, regulated, laboratory, and contractual conversions against the controlling standard.
Sources and further reading
These references explain the underlying standards or provide authoritative context. Your own contract, institution, clinician, product documentation, local code, or governing standard may be the controlling source.
Guidance on unit names, symbols, conversions, and numerical presentation.
Questions about this calculation
How do I convert Litres per 100 kilometres to Miles per US gallon?
Convert L/100 km to litres per 100 kilometres, then convert the base value to mpg (US). Using the displayed relationship, 1 L/100 km equals 235.214583 mpg (US).
How many Miles per US gallon are in one Litres per 100 kilometres?
One Litres per 100 kilometres is 235.214583 Miles per US gallon. The displayed digits may be rounded.
Can I reverse the L/100 km to mpg (US) conversion?
Yes. Swap the source and target units in the converter. The reverse relationship converts mpg (US) back to L/100 km.
Is the Litres per 100 kilometres to Miles per US gallon result exact?
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.