Fuel Economy Converter
Convert between mpg, L/100km, and other fuel economy units instantly
Common Fuel Economy Conversions
About Fuel Economy Conversions
Fuel economy conversion allows you to convert between different units of fuel efficiency such as miles per gallon (mpg), liters per 100 kilometers (L/100km), kilometers per liter (km/L), and more. This is particularly useful when comparing vehicles from different countries, understanding fuel efficiency standards, and planning travel expenses.
Converting Between MPG and L/100km
Converting between miles per gallon and liters per 100 kilometers (mpg to L/100km or L/100km to mpg) is one of the most common fuel economy conversions. Miles per gallon is commonly used in the United States and the United Kingdom, while liters per 100 kilometers is the standard in most European and many other countries.
It's important to note that these units have an inverse relationship: higher mpg values indicate better fuel efficiency, while lower L/100km values indicate better fuel efficiency.
To convert from mpg (US) to L/100km, divide 235.214583 by the mpg value. For example, 25 mpg equals 9.41 L/100km (235.214583 ÷ 25 = 9.41).
To convert from L/100km to mpg (US), divide 235.214583 by the L/100km value. For example, 8 L/100km equals 29.4 mpg (235.214583 ÷ 8 = 29.4).
Common Fuel Economy Conversions
Miles per Gallon (US) to Liters per 100 Kilometers Conversion Table
| Miles per Gallon (US) | Liters per 100 Kilometers |
|---|---|
| 15 mpg | 15.68 L/100km |
| 20 mpg | 11.76 L/100km |
| 25 mpg | 9.41 L/100km |
| 30 mpg | 7.84 L/100km |
| 35 mpg | 6.72 L/100km |
| 40 mpg | 5.88 L/100km |
| 50 mpg | 4.70 L/100km |
Liters per 100 Kilometers to Miles per Gallon (US) Conversion Table
| Liters per 100 Kilometers | Miles per Gallon (US) |
|---|---|
| 5 L/100km | 47.04 mpg |
| 6 L/100km | 39.20 mpg |
| 7 L/100km | 33.60 mpg |
| 8 L/100km | 29.40 mpg |
| 10 L/100km | 23.52 mpg |
| 12 L/100km | 19.60 mpg |
| 15 L/100km | 15.68 mpg |
US vs. UK Gallons
It's important to note that there is a difference between US gallons and UK (Imperial) gallons. 1 US gallon equals approximately 0.83267 UK gallons, which means that mpg values will differ depending on which gallon is being used.
To convert from mpg (US) to mpg (UK), multiply the mpg (US) value by 1.20095. For example, 30 mpg (US) equals 36.03 mpg (UK) (30 × 1.20095 = 36.03).
Our converter supports both US and UK gallons to ensure accurate conversions regardless of which system you're using.