EVERYDAY
Fuel economy
Reciprocal fuel economy and consumption measures.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result1.20095 mpg Imp1 mpg US = 1.20095 mpg Imp
EVERYDAY · ENGINEERING · SCIENCE
mpg US to mpg Imp Converter
Convert miles per U.S. gallon (mpg US) to miles per Imperial gallon (mpg Imp). Enter a value for an instant result, or use the examples and reverse conversion below.
520units ready to convert
HOW IT IS CALCULATED
Convert through litres per 100 kilometres
Enter a miles per U.S. gallon value to calculate miles per Imperial gallon with full internal precision before display rounding.
Display PrecisionAuto · 6 significant digits
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
QUICK REFERENCE
All units in this quantity
| 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.
mpg US to mpg Imp Conversion Reference
Miles Per U.S. Gallon (mpg US) and miles per Imperial gallon (mpg Imp) are units of fuel economy. Use this page to convert in either direction.
Conversion Examples
| Miles Per U.S. Gallon (mpg US) | Miles Per Imperial Gallon (mpg Imp) |
|---|---|
| 1 mpg US | 1.20095 mpg Imp |
| 5 mpg US | 6.00475 mpg Imp |
| 10 mpg US | 12.0095 mpg Imp |
| 100 mpg US | 120.095 mpg Imp |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
mpg Imp to mpg US (miles per Imperial gallon to miles per U.S. gallon)