Convert

Litres per 100 kilometres to Kilometres per litre

Exact answer: km/l = 100 / (l/100 km) (inverse relationship, not a linear factor)

Litres per 100 kilometres and Kilometres per litre run in opposite directions. A higher value in one unit means a lower one in the other. Consumption figures appear in vehicle data, test reports and travel cost calculations.

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What do you want to convert?

From1 l/100 km

Result100 km/l

FactorInverse formula

Source basisNIST Guide to SI Appendix B

Examples

011 l/100 km = 100 km/l

Example value from the reference table. Internal calculation uses stored factors; display output is rounded.

02Common mistake

mpg and l/100 km move in opposite directions. Higher mpg means lower consumption; higher l/100 km means higher consumption.

03Base unit: l/100 km

Fuel units are normalised through litres per 100 kilometres; mpg and km/l are inverse values.

Table

Litres per 100 kilometres to Kilometres per litre
Litres per 100 kilometres	Kilometres per litre
1	100
2	50
5	20
10	10
20	5
50	2

Formula

Fuel units are normalised through litres per 100 kilometres; mpg and km/l are inverse values.

Sources

NIST Guide to SI Appendix BNIST conversion-factor method and non-SI factors.

Related conversions

Miles per US gallon to Litres per 100 kilometresmpg US → l/100 kmFuel economy Litres per 100 kilometres to Miles per US gallonl/100 km → mpg USFuel economy Kilometres per litre to Litres per 100 kilometreskm/l → l/100 kmFuel economy Miles per imperial gallon to Litres per 100 kilometresmpg imp → l/100 kmFuel economy

Search and practice paths

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Factor origin

Factors come from the stored source family and are not derived from rounded display values.

Rounding rule

UnitCloud keeps calculating with stored factors and rounds only the displayed output by selected precision.

When not to use

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.

Citation

Citation note: UnitCloud, conversion with formula, sources reviewed: September 2026. Fuel economy. Source basis: NIST Guide to SI Appendix B.

Common questions

Which formula applies to Litres per 100 kilometres to Kilometres per litre?

km/l = 100 / (l/100 km)

Which formula does Litres per 100 kilometres to Kilometres per litre use?

Fuel units are normalised through litres per 100 kilometres; mpg and km/l are inverse values.

What is the most common mistake?

mpg and l/100 km move in opposite directions. Higher mpg means lower consumption; higher l/100 km means higher consumption.

When should I verify the result?

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.