Fuel Economy Calculator

Fuel Economy Calculator lets you fuel economy can be expressed as kilometres per litre or litres per 100 kilometres. Enter your own values or load the worked example.

Method and calculation

Fuel economy can be expressed as kilometres per litre or litres per 100 kilometres.

Inputs and settings

Fuel Economy Calculator accepts Distance travelled (km) (minimum 0.000001); Fuel used (L) (minimum 0.000001).

Worked example

Fuel Economy Calculator example — Distance travelled (km): 450; Fuel used (L): 30. Computed output: { "kmPerLitre": 15, "litresPer100km": 6.666666666666667, "usMPG": 35.282187494999995 }

Output and limitations

Fuel Economy Calculator: Use finite inputs. Results use double-precision arithmetic.

Technical references: JavaScript numerical operations

Fuel Economy Calculator FAQs

Fuel Economy Calculator applies the following rule to your input: Fuel economy can be expressed as kilometres per litre or litres per 100 kilometres. The worked example on this page uses the same processor as the result button.
Fuel Economy Calculator has these boundaries: Use finite inputs. Results use double-precision arithmetic. Start by checking the distance travelled (km) field against the units or format shown.
Fuel Economy Calculator provides this sample: { "kmPerLitre": 15, "litresPer100km": 6.666666666666667, "usMPG": 35.282187494999995 }. Use the sample button to reproduce it, then replace the inputs with your own values.