Looking to calculate how much your petrol costs you per mile? Our cost per mile calculator has you covered. Just add the price you pay for fuel and your car’s average Miles Per Gallon in the calculator below. It will automatically calculate how much you are spending on petrol per mile.
How To Use This Petrol Cost Per Mile Calculator
This calculator is very simple to use. Simply enter the price you paid for fuel in pence and your car’s average Miles Per Gallon.
Average Miles Per Gallon – This will differ based on your model of car. Average MPG can be found online for each car model however the MPG you actually get will depend on your driving style. It’s much more accurate to look at the dashboard in your car and get your actual MPG from there.
Petrol Price (Pence) – Simply enter the price you paid for your fuel in pence. For example, if the fuel was £1.50 per liter at the shop, you should enter 150 in the petrol price section.
That’s it. Once you enter these figures, you will get a price per mile in pounds. This is how much it costs you to drive 1 mile in your car.
Petrol Cost Per Mile Formula
To calculate your cost per mile there is a few steps we have to take. We use the formula:
( Petrol price in pence ÷ 100 ) ÷ ( MPG x 0.22 )
The first part of the formula converts the petrol price to pounds and the second part of the formula calculates the number of miles per liter your car gets.
We then divide the price per liter by the miles per liter your car gets. This gives us the petrol price per liter you are paying.
Let’s take a look at an example:
If you drive 120 miles per week for your work and want to calculate your cost per mile and price of driving to work each week you can do the following.
Petrol Price: 155 Pence
MPG: 44
When we put these numbers into the formula we get the calculation below:
( 155 ÷ 100 ) ÷ ( 44 x 0.22 )
155 divided by 100 gives us £1.55, our price of petrol. 44 x 0.22 gives us 9.68, the number of miles per liter your car gets.
£1.55 ÷ 9.68 miles = 0.1601
This gives us a price of £0.16 or 16p per mile when rounded to the nearest pence.
We can then multiply this £0.16 by 120 miles to work out our total weekly cost of £19.20.
Final Thoughts
You can bookmark this calculator and use it any time you need to calculate your petrol cost per mile. As the price of petrol changes your price per mile will also change. Car age, driving style and weather conditions can all affect your car’s miles per gallon, so you may find your actual MPG changes over time.
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