In the United States, fuel efficiency is typically expressed in miles per gallon (mpg), while most other countries use the metric system of liters per 100 kilometers (l/100 km).

How to Convert mpg to l/100 km

Step 1. Determine the miles per gallon you want to convert

Step 1

Choose a value in mpg that you wish to convert to l/100 km and plug it into the formula below. ____ mpg * 1 mile/l 3.7854 miles/gallon * 1 x mile/l1 * 62.1371 l/100 km1 l/mile = ? l/100 km

Step 2. Perform the necessary calculations

Step 2

Now, carry out the calculations to get the result in l/100 km. Note: 1/x miles/l is the reciprocal value.

Step 3. Breaking down how the conversion formula works

Step 3

Let’s break down the conversion process. First, we need to convert the volume from gallons to liters using the conversion factor: 1 gallon = 3.78541178 l. Then, we take the reciprocal to switch from miles per liter to liters per 100 kilometers. Finally, we convert miles to kilometers using the factor of 1 km = 0.62137119 miles. Since we’re dealing with 100 km, we multiply 0.621371 by 100 to get 62.1371.

Step 4. Example of conversion

Step 4

Let’s look at a practical example. Using the formula, we convert 30 mpg to l/100 km. 30 mpg * 1 mile/l 3.7854 miles/gallon * 1 x mile/l1 * 62.1371 l/100 km1 l/mile = 7.84046 l/100 km

Step 5. Congratulations, you’ve successfully made the conversion!

Step 5

Step 6. A quick way to convert

Step 6

For a quick conversion, you can simply divide 235.214 by the number of miles per gallon. For example: 235.214 / 30 mpg = 7.84046 l/100 km.