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Gallons/kilometer to 100 miles/gallon (g/km to 100 mi/g) Metric conversion calculator

Welcome to our gallons/kilometer to 100 miles/gallon (g/km to 100 mi/g) conversion calculator. You can enter a value in either the gallons/kilometer or 100 miles/gallon input fields. For an understanding of the conversion process, we include step by step and direct conversion formulas. If you'd like to perform a different conversion, just select between the listed Fuel Economy units in the 'Select between other Fuel Economy units' tab below or use the search bar above. Tip: Use the swap button to switch from converting gallons/kilometer to 100 miles/gallon to 100 miles/gallon to gallons/kilometer.

gallons/kilometer (g/km)


100 miles/gallon (100 mi/g)

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Algebraic Steps / Dimensional Analysis Formula
g/km *   1  
x g/km
* 1 100 mi/g
160.9344 km/g
= 100 mi/g

If you would like to switch between Fuel Economy units, select from the tables below

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