Miles per imperial gallon to Liters per 100 km
Convert Miles per imperial gallon to Liters per 100 km instantly. Free online fuel economy unit converter with exact formula, conversion table and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
Converter
Length Converter
Convert metric, imperial, and nautical distance units.
Use the converter to see the formula.
Results update instantly for Miles per imperial gallon to Liters per 100 km conversions.
Reserved above the conversion cards and below the converter.
Formula
1 mpg imp = 282.4809363 L/100 km
L/100 km = 282.4809363 ÷ mpg imp
mpg imp = 282.4809363 ÷ L/100 km
Conversion table
| 1 mpg imp | 282.480936 L/100 km |
| 2 mpg imp | 141.240468 L/100 km |
| 5 mpg imp | 56.496187 L/100 km |
| 10 mpg imp | 28.248094 L/100 km |
| 20 mpg imp | 14.124047 L/100 km |
| 50 mpg imp | 5.649619 L/100 km |
| 100 mpg imp | 2.824809 L/100 km |
Related conversions
- Miles per imperial gallon → Miles per US gallon
- Miles per imperial gallon → Kilometers per liter
- Miles per imperial gallon → Meters per liter
- Miles per imperial gallon → Liters per km
- Miles per imperial gallon → US gallons per 100 miles
- Liters per 100 km → Miles per US gallon
- Liters per 100 km → Kilometers per liter
- Liters per 100 km → Meters per liter
- Liters per 100 km → Liters per km
- Liters per 100 km → US gallons per 100 miles
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many liters per 100 km are in one miles per imperial gallon?
One mpg imp equals 282.4809363 L/100 km (this pair inverts, since one measures distance per volume and the other volume per distance).
How do I convert miles per imperial gallon to liters per 100 km?
Divide 282.4809363 by the miles per imperial gallon value to get liters per 100 km, and divide 282.4809363 by the liters per 100 km value to get back miles per imperial gallon. This "invert the constant" rule works both ways because one unit is distance-per-volume and the other is volume-per-distance.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between miles per imperial gallon and liters per 100 km, so the result shown is mathematically precise (rounded only for display).
When is miles per imperial gallon to liters per 100 km conversion commonly used?
It is commonly used in automotive fuel efficiency ratings, vehicle comparisons and shopping, as well as EPA, WLTP and other international fuel economy standards.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
Miles per imperial gallon and Liters per 100 km are both units used to measure fuel economy. Miles per imperial gallon (mpg imp) measures how many miles a vehicle travels using one imperial (UK) gallon of fuel; a higher number means better efficiency. It is used mainly in the United Kingdom and other Commonwealth countries. Liters per 100 kilometers (L/100 km) measures how many liters of fuel a vehicle consumes over 100 kilometers; a lower number means better efficiency. It is the standard fuel consumption unit used across most of Europe and many other regions. Miles per imperial gallon is a distance-per-volume efficiency unit while liters per 100 km is a volume-per-distance consumption unit, so converting between them means inverting the value rather than multiplying by a flat factor: 1 mpg imp = 282.4809363 L/100 km. This relationship stays accurate for automotive fuel efficiency ratings, vehicle comparisons and shopping, as well as EPA, WLTP and other international fuel economy standards.