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HomeFuel consumption & efficiencyL/100 km to km/L
Dedicated unit pair

Litres per 100 kilometres to Kilometres per litre

Convert L/100 km to km/L 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 km/L. 1 L/100 km = 100 km/L
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 kmkm/L
1 L/100 km100 km/L
2 L/100 km50 km/L
5 L/100 km20 km/L
10 L/100 km10 km/L
25 L/100 km4 km/L
50 L/100 km2 km/L
100 L/100 km1 km/L

Conversion chart

1 L/100 km100 km/L
5 L/100 km20 km/L
10 L/100 km10 km/L
25 L/100 km4 km/L
50 L/100 km2 km/L
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 km/L and apply your display precision.

Important

Fuel economy and fuel consumption are reciprocal measures; zero is not a valid input.

What this calculation means

Understand the result before using it

Litres per 100 kilometres to Kilometres per litre converts a value measured in Litres per 100 kilometres (L/100 km) into the equivalent value in Kilometres per litre (km/L). 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.

Method

Formula, assumptions, and example

Formula

Convert L/100 km to litres per 100 kilometres, then convert the base value to km/L.

Assumptions

  • Litres per 100 kilometres and Kilometres per litre represent the same fuel consumption & efficiency quantity.
  • The input is expressed in L/100 km; the output is expressed in km/L.
  • Fuel economy and fuel consumption are reciprocal measures; zero is not a valid input.
Worked example

1 L/100 km = 100 km/L. 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 km/L.
  • Compare a litres per 100 kilometres value with a value reported in kilometres per litre.
  • Check the L/100 km-to-km/L 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.
References

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.

SI BrochureInternational Bureau of Weights and Measures (BIPM)

Authoritative definitions of the International System of Units and SI prefixes.

FAQ

Questions about this calculation

How do I convert Litres per 100 kilometres to Kilometres per litre?

Convert L/100 km to litres per 100 kilometres, then convert the base value to km/L. Using the displayed relationship, 1 L/100 km equals 100 km/L.

How many Kilometres per litre are in one Litres per 100 kilometres?

One Litres per 100 kilometres is 100 Kilometres per litre. The displayed digits may be rounded.

Can I reverse the L/100 km to km/L conversion?

Yes. Swap the source and target units in the converter. The reverse relationship converts km/L back to L/100 km.

Is the Litres per 100 kilometres to Kilometres per litre 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.