Quick answer: 100 mpg = 42.51 kmpl ⛽
This page is indexable for this exact conversion query and reuses the full fuel consumption converter for more unit pairs.
International System of Units (SI) measurements
Traditional British and American measurements
100 mpg to kmpl equals 42.51 kmpl (approx).
In L/100km: 100 mpg = 2.35 L/100km.
In kmpl: 100 mpg = 42.51 kmpl.
Formula hint: for mpg to kmpl, multiply mpg by 0.4251.