Understanding fuel consumption standards across different regions is essential when comparing vehicle efficiency or calculating travel costs. While the United States relies on US MPG (miles per gallon), the United Kingdom and components of the Commonwealth utilize the UK Imperial MPG standard, which uses a larger gallon volume. Conversely, most international markets measure efficiency through the metric system using Liters per 100 Kilometers (L/100km). To manually calculate these values, you can use the standard industry constants: convert US MPG by dividing 235.215 by your fuel economy value, or convert UK MPG by dividing 282.481 by the same figure. Generally, lower numbers in the L/100km metric represent superior fuel economy, whereas higher miles per gallon numbers signal better efficiency. Utilizing an online fuel economy converter ensures accurate calculations when switching between these regional metrics for consumer research, logistics planning, or vehicle ownership tracking.
How to convert US mpg to liters per 100 kilometers?
As a formula, to convert mpg to liters per 100 kilometers (L/100 km), divide 235.214583 by the miles per gallon (mpg) value.
For example, to convert 24 miles per gallon to liters per 100 kilometers, divide 235.214583 by 24, that makes 24 mpg equal to 9.8 L/100km.
mpg to L/100km conversion formula:
L/100km = 235.214583 / mpg
Fuel Economy Conversion Table
| US MPG |
L/100 km |
UK MPG |
| 15 | 15.68 | 18.01 |
| 16 | 14.70 | 19.22 |
| 17 | 13.84 | 20.42 |
| 18 | 13.07 | 21.62 |
| 19 | 12.38 | 22.82 |
| 20 | 11.76 | 24.02 |
| 21 | 11.20 | 25.22 |
| 22 | 10.69 | 26.42 |
| 23 | 10.23 | 27.62 |
| 24 | 9.80 | 28.82 |
| 25 | 9.41 | 30.02 |
| 26 | 9.05 | 31.23 |
| 27 | 8.71 | 32.43 |
| 28 | 8.40 | 33.63 |
| 29 | 8.11 | 34.83 |
| 30 | 7.84 | 36.03 |
| 31 | 7.59 | 37.23 |
| 32 | 7.35 | 38.43 |
| 33 | 7.13 | 39.63 |
| 34 | 6.92 | 40.83 |
| 35 | 6.72 | 42.03 |
| 36 | 6.53 | 43.23 |
| 37 | 6.36 | 44.44 |
| 38 | 6.19 | 45.64 |
| 39 | 6.03 | 46.84 |
| 40 | 5.88 | 48.04 |
| 41 | 5.74 | 49.24 |
| 42 | 5.60 | 50.44 |
| 43 | 5.47 | 51.64 |
| 44 | 5.35 | 52.84 |
| 45 | 5.23 | 54.04 |
What is Miles per Gallon (MPG)?
Miles per gallon (mpg) is a fuel economy unit to measure is the distance traveled per mile. 1 US MPG = 235.214583 L/100km and 1 UK MPG = 282.4809363 L/100km.
When shopping for imported cars or evaluating European specification sheets, understanding the conversion between Liters per 100 Kilometers and Miles per Gallon becomes highly practical. Most European manufacturers evaluate fuel consumption using the L/100km metric, which measures how much fuel a vehicle consumes over a fixed distance. For drivers accustomed to American or British standards, seeing a rating like 6 L/100km can be confusing. By converting this metric, you can quickly determine that it equals roughly 39.2 US MPG or 47 UK MPG, indicating excellent highway efficiency. Whether you are analyzing a fuel-efficient continental hybrid, importing a classic vehicle, or comparing local showroom models against foreign imports, calculating exact MPG to L/100km variations ensures you accurately project your real-world driving range and long-term gas mileage expenses.
What is Liters per 100 Kilometers (L/100km)?
Liters per 100 Kilometers (L/100km) is a unit of fuel consumption commonly used in countries that follow the metric system. It represents the amount of fuel (in liters) required to travel a distance of 100 kilometers. In L/100 km, a lower value indicates better fuel efficiency. 1 L/100km = 235.214583 US MPG and 1 L/100km = 282.4809363 UK MPG.
Please visit fuel economy conversion calculator tool to convert all fuel economy units.