Convert Miles per Imperial Gallon to Liters per Kilometer
Convert Miles per Imperial Gallon (mpg (Imp)) to Liters per Kilometer (L/km) instantly and accurately.
Conversion Formula
L/km = 2.824809363 ÷ mpg (Imp)
About Miles per Imperial Gallon
Miles per Imperial gallon (mpg(Imp)) is the UK and historically Commonwealth standard. The Imperial gallon (4.54609 L) is ~20.1% larger than the US gallon, so mpg(Imp) is always numerically higher: a 7 L/100km car achieves 33.6 mpg(US) but 40.4 mpg(Imp). All UK VCA-certified specs list mpg(Imp). Typical WLTP combined: supermini 45-60 mpg; full hybrid 55-75 mpg; diesel family car 48-68 mpg; large petrol SUV 28-38 mpg. 1 mpg(Imp) = 1.609344/4.54609 km/L = 0.354006 km/L; L/100km = 282.481/mpg(Imp).
About Liters per Kilometer
Liters per kilometer (L/km) is 100× larger than L/100km, suited to heavy vehicles and industrial machinery. A European family car at 0.07 L/km; a Class 8 semi-truck 0.33-0.40 L/km; an M1 Abrams tank ~1.3 L/km on road, ~4 L/km off-road; a diesel mainline locomotive 5-8 L/km. Australian road trains (200+ t) log fuel in L/km to plan outback depot spacing. A Caterpillar 793F mining dump truck fully laden uses 4-6 L/km. 1 L/km = 100 L/100km.
Quick Reference Table
| Miles per Imperial Gallon (mpg (Imp)) | Liters per Kilometer (L/km) |
|---|---|
| 1 mpg (Imp) | 2.82481 L/km |
| 2 mpg (Imp) | 1.4124 L/km |
| 5 mpg (Imp) | 0.564962 L/km |
| 10 mpg (Imp) | 0.282481 L/km |
| 25 mpg (Imp) | 0.112992 L/km |
| 50 mpg (Imp) | 0.0564962 L/km |
| 100 mpg (Imp) | 0.0282481 L/km |