Easily convert between MPG (US & UK) and L/100km to compare vehicle efficiency across different standards.
Converted Efficiency Result:
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A lower L/100km value indicates better fuel efficiency, whereas a higher MPG value is better.
Fuel efficiency is a measurement of the distance traveled per unit of fuel consumed, or conversely, the specific volume of fuel consumed to cover a set distance.
Formula for US MPG: L/100km = 235.215 / MPG
L/100km = 235.215 / MPG
To illustrate how this works, let's convert 30 MPG (US) into metric units (L/100km).
This demonstrates that a car getting 30 miles per gallon is consuming roughly 7.8 liters for every 100 kilometers traveled.
The US liquid gallon is smaller (approx. 3.785 liters) than the UK imperial gallon (approx. 4.546 liters), which leads to different conversion constants for each region.
L/100km is more intuitive for calculating fuel costs for a specific trip distance. However, unlike MPG, a lower number signifies better efficiency.
To convert UK Imperial MPG to L/100km, use the constant 282.481. The formula is: L/100km = 282.481 / MPG (UK).
L/100km = 282.481 / MPG (UK)
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