15 Mpg to L 100km Calculator

How to Convert mpg to l/100km

Converting miles per gallon (mpg) to liters per 100 kilometers (l/100km) is a straightforward process that involves understanding the units and applying a simple formula. This conversion is particularly useful when comparing fuel efficiency between vehicles that use different measurement systems.

Understanding the Units

In the United States, fuel efficiency is typically measured in miles per gallon (mpg), where a higher number indicates better fuel economy. In most other countries, fuel efficiency is measured in liters per 100 kilometers (l/100km), where a lower number indicates better fuel economy.

Conversion Process

1. Identify the mpg value you want to convert.
2. Apply the conversion formula to calculate the equivalent l/100km value.
3. Interpret the result to understand the fuel efficiency in the target unit.

By following these steps, you can accurately convert mpg to l/100km and compare fuel efficiency across different regions.

Conversion Formula

The formula to convert miles per gallon (mpg) to liters per 100 kilometers (l/100km) is as follows:

This formula is derived from the fact that 1 gallon is approximately 3.78541 liters and 1 mile is approximately 1.60934 kilometers. The constant 235.215 is the result of dividing these conversion factors.

Example Calculation

Let's say you have a vehicle with a fuel efficiency of 15 mpg. To convert this to l/100km, you would use the formula:

This means that the vehicle consumes approximately 15.681 liters of fuel to travel 100 kilometers.

Example Calculation

To better understand the conversion, let's walk through an example calculation. Suppose you have a vehicle that gets 15 mpg. Here's how you would convert this to l/100km:

1. Start with the mpg value: 15 mpg.
2. Apply the conversion formula: l/100km = 235.215 / 15.
3. Calculate the result: 235.215 / 15 ≈ 15.681 l/100km.

So, a vehicle that gets 15 mpg is equivalent to approximately 15.681 l/100km. This means that for every 100 kilometers traveled, the vehicle consumes about 15.681 liters of fuel.

US vs UK Fuel Efficiency

Understanding the difference between US and UK fuel efficiency measurements can help you make more informed decisions when comparing vehicles. Here's a comparison of the two systems:

As you can see, a higher mpg value indicates better fuel economy in the US system, while a lower l/100km value indicates better fuel economy in the UK system. This difference can make it challenging to compare vehicles from different regions.