Fuel economy
Reciprocal fuel economy and consumption measures.
Try a decimal, 1e-9, 1/3, or 5 1/2.
EVERYDAY · ENGINEERING · SCIENCE
Convert miles per U.S. gallon (mpg US) to litres per 100 kilometres (L/100 km). Enter a value for an instant result, or use the examples and reverse conversion below.
Reciprocal fuel economy and consumption measures.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Enter a miles per U.S. gallon value to calculate litres per 100 kilometres with full internal precision before display rounding.
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
| Unit | Symbol | Converted value |
|---|---|---|
| litres per 100 kilometresfrom mpg US | L/100 km | 235.215 |
| kilometres per litrefrom mpg US | km/L | 0.425144 |
| miles per U.S. gallonfrom mpg US | mpg US | 1 |
| miles per Imperial gallonfrom mpg US | mpg Imp | 1.20095 |
| miles per litrefrom mpg US | mi/L | 0.264172 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Miles Per U.S. Gallon (mpg US) and litres per 100 kilometres (L/100 km) are units of fuel economy. Use this page to convert in either direction.
| Miles Per U.S. Gallon (mpg US) | Litres Per 100 Kilometres (L/100 km) |
|---|---|
| 1 mpg US | 235.215 L/100 km |
| 5 mpg US | 47.0429 L/100 km |
| 10 mpg US | 23.5215 L/100 km |
| 100 mpg US | 2.35215 L/100 km |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
L/100 km to mpg US (litres per 100 kilometres to miles per U.S. gallon)