Well I typed
20 miles per gallon in km per liter into Google and this what it said....
35 mpg equates to 6.72042 L/100km
5.88l/100km - litres for 100 km
1 gallon ≈ 3.78 L ■
1000
5.750 (US gallons per hour) = 0.00604614382 liters per second.
One Canadian gallon equates to 4.54609 liters.
0.500 gallons of mile is about 1.892 liters.
8.11 L/100km
13 miles per gallon = 18.09 liters/100km
22 miles per gallon = 10.7 liters/100km
22.19 liters per 100km
450 km per liter = 0.2222 liters per 100 km
15 liters/100km = 15.68 miles per gallon.
-35 mpg = ~4.7 L/100km.
25 miles per gallon = 9.41 liters/100km
32 miles per gallon is 7.35 L/100km
11.6L/100km
30 miles per gallon = 7.84 liters/100km
235.2 / mpg = liters per 100 km