Fuel Efficiency Converter

Fuel Efficiency Converter is evaluated from Fuel Efficiency Value and From Unit. The calculation reports MPG, L/100km and km/L.

Results

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About the Fuel Efficiency Converter

Fuel Efficiency Converter is treated here as a quantitative relation between Fuel Efficiency Value and From Unit and MPG, L/100km, km/L and MPG.

The calculator uses a multi formula configuration. Each reported value is read as a direct evaluation of the stored rules with the declared field formats and units.

Formula basis:
US MPG → L/100km: L/100km = 235.215 / MPG
L/100km → MPG: MPG = 235.215 / L/100km
US MPG → km/L: km/L = MPG x 0.425144
Imperial MPG → US MPG: x 0.832674
(1 US gallon = 3.78541 L; 1 mile = 1.60934 km)

Interpret the outputs in the order shown by the result fields. Optional inputs affect only the outputs that depend on those variables.

Formula & How It Works

The calculation applies the following relations exactly as recorded in the metadata:

US MPG → L/100km: L/100km = 235.215 / MPG
L/100km → MPG: MPG = 235.215 / L/100km
US MPG → km/L: km/L = MPG x 0.425144
Imperial MPG → US MPG: x 0.832674
(1 US gallon = 3.78541 L; 1 mile = 1.60934 km)

Each output field is produced by substituting the supplied inputs into the relevant relation and then applying the declared rounding or text format.

Worked Examples

Example 1: Toyota Prius: 52 MPG

Inputs

value: 52 from_unit: MPG (US miles/gallon)
MPG: 52 mpg. L/100km: 4.52 L/100km. km/L: 122.311 km/L. MPG: 62.45 mpg (UK)

With Fuel Efficiency Value = 52 and From Unit = MPG (US miles/gallon) as the stated inputs, the result is MPG = 52 mpg, L/100km = 4.52 L/100km and km/L = 122.311 km/L. Each value corresponds to the declared output fields.

Example 2: European Car: 6 L/100km

Inputs

value: 6 from_unit: L/100km
MPG: 39.2 mpg. L/100km: 6 L/100km. km/L: 92.21 km/L. MPG: 47.08 mpg (UK)

With Fuel Efficiency Value = 6 and From Unit = L/100km as the stated inputs, the result is MPG = 39.2 mpg, L/100km = 6 L/100km and km/L = 92.21 km/L. Each value corresponds to the declared output fields.

Example 3: Ford F-150 3.5L EcoBoost: 24 MPG

Inputs

value: 24 from_unit: MPG (US miles/gallon)
MPG: 24 mpg. L/100km: 9.8 L/100km. km/L: 56.451 km/L. MPG: 28.82 mpg (UK)

With Fuel Efficiency Value = 24 and From Unit = MPG (US miles/gallon) as the stated inputs, the result is MPG = 24 mpg, L/100km = 9.8 L/100km and km/L = 56.451 km/L. Each value corresponds to the declared output fields.

Example 4: Japanese Car: 20 km/L

Inputs

value: 20 from_unit: km/L
MPG: 8.5 mpg. L/100km: 27.66 L/100km. km/L: 20 km/L. MPG: 10.21 mpg (UK)

With Fuel Efficiency Value = 20 and From Unit = km/L as the stated inputs, the result is MPG = 8.5 mpg, L/100km = 27.66 L/100km and km/L = 20 km/L. Each value corresponds to the declared output fields.

Common Use Cases

  • Convert European car fuel economy from L/100km to MPG
  • Convert Japanese car km/L rating to US MPG
  • Compare US vs European fuel economy ratings