How is mpg is calculated

Basically, a high MPG means you can drive the same distance with less fuel in the tank. This in turn means you should have to refuel less often than vehicles with a lower MPG - providing you have the same size fuel tank, of course. A high MPG additionally has a knock-on effect of the eco-friendliness of a vehicle, which is important to bear in mind. Both the practical and environmental impacts of a high MPG make it a desirable feature for a car to have - something manufacturers have noticed, as newer cars tend to have higher MPG.

MPG is rigorously tested by an official authority to give buyers a way to compare fuel economy between certain cars. However, it can be a challenge to accurately replicate things such as wind speed or gradient that can affect fuel economy on the road in the lab.

Because of this, WLTP figures should be taken with a pinch of salt. While the WLTP tests have been designed to be reflective of real-world driving, they are still carried out exclusively in a lab. This can especially be the case if you drive a plug-in hybrid PHEV car. If you are interested in buying a fuel efficient car, take a look at the most economical cars by tapping the link below. Sell your car Get offers from multiple dealers. Sell your car. What is mpg? How is it calculated?

Help me pick my next car. Compare VW Golf deals. Eventually, return to the gas station and fill your tank again. Make a note of the updated reading on your odometer. Also note how many gallons it takes to fill up your tank this time. Step Three: Subtract the first mileage number from the second one. Step Four: Divide the number you get from step three by the number of gallons it took to fill your tank.

This is your MPG. The second method takes advantage of a feature on modern cars called a trip odometer. To make your gas mileage better, you need to know what you are getting in the first place. Most modern vehicles nowadays will have a digital readout. Probably a display on your dash of the mpg miles per gallon you are getting. How many miles you can drive using one gallon of fuel.