👉 MPG (Miles Per Gallon) is a measure of fuel efficiency, indicating how many miles a vehicle can travel on one gallon of gasoline. The math behind it is straightforward: MPG = Total Miles Driven / Total Gallons of Gas Used. For example, if a car travels 300 miles using 10 gallons of gas, its MPG is 30 (300 / 10). This means the car is 30 miles per gallon. To calculate MPG, you divide the total distance traveled by the total fuel consumed in gallons. This metric helps consumers compare the efficiency of different vehicles and choose the most economical option for their needs.