US mpg to litres per 100 km

Enter a value in miles per gallon (us) to convert it to litres per 100 km.

⇄

30 mpg = 7.8405 L/100 km

Formula

L/100 km = 235.2146 ÷ US mpg

Worked example

235.2146 ÷ 30 = 7.8405 L/100 km

Results on this page are rounded to 4 decimal places (4 significant figures below 1). Use the decimal places option above for a different rounding.

US mpg to litres per 100 km table

Miles per gallon (US) (mpg)Litres per 100 km (L/100 km)
10 mpg23.5215 L/100 km
15 mpg15.681 L/100 km
20 mpg11.7607 L/100 km
25 mpg9.4086 L/100 km
30 mpg7.8405 L/100 km
35 mpg6.7204 L/100 km
40 mpg5.8804 L/100 km
50 mpg4.7043 L/100 km

Good to know

Miles per gallon and km per litre measure distance per fuel, while L/100 km measures fuel per distance, so one is the reciprocal of the other: a higher mpg means a lower L/100 km. L/100 km = 235.215 ÷ US mpg, or 282.481 ÷ UK mpg. UK mpg is higher than US mpg for the same car because the UK gallon is bigger.

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