All the unit conversions
TypeSystemUnitConversion factor
FuelEconomy (compound parts)ImperialImperialMilePerGallon (impmpg) 354006.18993464713633034101833
MilePerGallon (mpg) 354006.18993464713633034101833
NoneKilometrePerLitre (km/L) 1000000
SIInverseSquareMetre (1/m2) 1
USCSUSCSMilePerGallon (uscmpg) 425143.70743027200340114965944