Convert Gallons/100 mile to miles/gallon (g/100 mi to mpg)

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

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

gallons/100 mile (g/100 mi)


miles/gallon (mpg)


Formula: Converter Guidelines / Converting Formula

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