Miles Per Gallon

Reference data and engineering information about miles per gallon for miscellaneous applications.

milespergallon

Overview

Engineering reference data for Miles Per Gallon in miscellaneous.

$y = x \cdot k$

Multiply by conversion factor.

$y = y_1 + \frac{(x - x_1)(y_2 - y_1)}{x_2 - x_1}$

Estimate between two known points.

$p = \frac{\text{part}}{\text{whole}} \times 100\%$

Part as fraction of whole.

Understanding fuel efficiency requires converting between different measurement systems. Here are the core conversion formulas between common units.

\text{mpg} = \frac{\text{Distance (miles)}}{\text{Fuel Used (gallons)}}

To convert between miles per gallon (MPG) and the metric unit of liters per 100 kilometers (L/100km), use the following inverse relationship:

\text{L/100km} = \frac{235.215}{\text{MPG}}

\text{MPG} = \frac{235.215}{\text{L/100km}}

To convert from MPG to kilometers per liter (km/L), a common metric efficiency measure:

\text{km/L} = \text{MPG} \times 0.425144

Consumption Metric	Description	Relationship to MPG
L/100km	Liters consumed per 100 km traveled. Lower is better.	Inverse of MPG: $\text{L/100km} = \frac{235.215}{\text{MPG}}$
km/L	Kilometers traveled per liter of fuel. Higher is better.	Direct: $\text{km/L} = \text{MPG} \times 0.425144$
GPM (gallons per mile)	Gallons consumed per mile traveled. Lower is better.	Inverse of MPG: $\text{GPM} = \frac{1}{\text{MPG}}$