Convert Miles/gallon to gallons/100 mile (mpg to g/100mi)

Welcome to the metric conversion page miles/gallon to gallons/100 mile (mpg to g/100mi). You can fill a value between miles/gallon and gallons/100 mile. To understand the conversion process, we have step-by-step instructions and direct conversion formulas.

Question: How to calculate mpg to g/100mi? Or How many mpg to g/100mi?
Answer: To change from mpg to g/100mi enters the left box, otherwise, enter the right box below.

miles/gallon (mpg)


gallons/100 mile (g/100mi)


Formula: Converter Guidelines / Converting Formula

mpg *   1  
x mpg
* 100 g/100mi
1 g/mi
= g/100mi