Convert Kilometers per Imperial Gallon to Liters per 100 Kilometers

Convert Kilometers per Imperial Gallon (km/Imp gal) to Liters per 100 Kilometers (L/100km) instantly and accurately.

Kilometers per Imperial Gallon (km/Imp gal)
Liters per 100 Kilometers (L/100km)

Conversion Formula

L/100km = 454.609 ÷ km/Imp gal

About Kilometers per Imperial Gallon

Kilometers per Imperial gallon (km/Imp gal) combines metric distances with the British Imperial gallon (4.54609 L). 1 km/Imp gal = 1/4.54609 km/L = 0.21997 km/L. A typical mid-size car at 12.75 km/L = 57.96 km/Imp gal. It appears in pre-1970s Australian road transport regulations, some South African vehicle import documentation, and pre-1979 Canadian fuel efficiency standards. Relationship to mpg(Imp): km/Imp gal = mpg(Imp) / 1.609344, so 50 mpg(Imp) = 31.07 km/Imp gal. 1 km/Imp gal = 0.21997 km/L.

About Liters per 100 Kilometers

Liters per 100 kilometers (L/100km) is the standard fuel consumption unit of the EU, China, Australia, and most of the world. Lower values mean greater efficiency: 5 L/100km is exactly twice as efficient as 10 L/100km. EU WLTP certification requires reporting in L/100km; CO₂ in g/km ≈ L/100km × 23.9 (petrol) or × 26.5 (diesel). Benchmarks: European average new car (2024 WLTP) ~6.5 L/100km; compact SUV 8-11; articulated truck 28-35; M1 Abrams tank ~130. 1 L/100km = 235.215/mpg(US) = 282.481/mpg(Imp).

Quick Reference Table

Kilometers per Imperial Gallon (km/Imp gal)Liters per 100 Kilometers (L/100km)
1 km/Imp gal454.609 L/100km
2 km/Imp gal227.305 L/100km
5 km/Imp gal90.9218 L/100km
10 km/Imp gal45.4609 L/100km
25 km/Imp gal18.1844 L/100km
50 km/Imp gal9.09218 L/100km
100 km/Imp gal4.54609 L/100km

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