Enter the total fuel consumed and the distance traveled into the calculator to determine the gallons per mile. This calculator helps in understanding the fuel efficiency of a vehicle.

Gallons Per Mile Formula

The following formula is used to calculate the gallons per mile.

GPM = FC / DT

Variables:

  • GPM is the gallons per mile
  • FC is the fuel consumed (gallons)
  • DT is the distance traveled (miles)

To calculate gallons per mile, divide the total fuel consumed by the distance traveled.

What is Gallons Per Mile?

Gallons per mile (GPM) is a measure of fuel efficiency that indicates how many gallons of fuel a vehicle uses to travel one mile. It is an alternative to the more common miles per gallon (MPG) metric and can be particularly useful for comparing the fuel efficiency of vehicles that consume a lot of fuel, such as trucks or heavy machinery.

How to Calculate Gallons Per Mile?

The following steps outline how to calculate the Gallons Per Mile.


  1. First, determine the total fuel consumed (FC) in gallons.
  2. Next, determine the distance traveled (DT) in miles.
  3. Next, gather the formula from above = GPM = FC / DT.
  4. Finally, calculate the Gallons Per Mile (GPM).
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total fuel consumed (FC) = 15 gallons

distance traveled (DT) = 300 mile