**How much does petrol cost per mile?** If you’re curious to know how much petrol costs per mile, the petrol calculator below will work out an estimate based on your car’s fuel efficiency (MPG).

You’ll need to enter the price per litre of petrol and your car’s MPG figure into the calculator, then it will give you an automatic **petrol cost estimate for 1 mile.**

## How to calculate petrol cost per mile

Understanding **how to calculate your petrol cost per mile** is very important because it can help you to budget for your daily, weekly, monthly or annual fuel costs. Here’s what you’ll need to know to get started:

- The fuel economy of your car (in MPG)
- How much you pay for petrol (in pence per litre)

**(Petrol price in pence ÷ 100) ÷ (MPG ÷ 0.22)**

**Example 1:** Let’s say you drove 25 miles for work today, you pay 165p per litre of petrol, and your car gets 40 miles per gallon. Here’s how to work out your petrol cost per mile: (165 ÷ 100) ÷ (40 ÷ 0.22) = 0.1875 or £0.19 rounded to the nearest pence.

This means that the total cost to drive 25 miles would be 0.1875×25 = £4.69.

**Example 2:** Let’s say you drove 100 miles per week for work, you pay 160p per litre of petrol, and you get 45 miles per gallon. The formula to work out your petrol cost per mile would be: (160 ÷ 100) ÷ (45 ÷ 0.22) = 0.1616 or £0.16 rounded to the nearest pence.

This means that the total cost to drive 100 miles would be 0.1616×100 = £16.16.

### Keep in mind:

It’s important to understand that the price you pay per mile for petrol has a lot to do with the way you drive. For example, two people could have the same model car, but they could be paying **two completely different prices** per mile because of the way they drive.