Diesel Cost Calculator

Alternatively, you can perform a quick calculation below

Quick calculation


The Commercial Fleet diesel cost calculator is designed to help fleets estimate diesel costs for either the entire fleet or an individual van.

Select the fuel type, mileage covered and the vehicle make, model and derivative to get an estimated cost of fuel.

The calculation is based on the official mpg figures from the vehicle specification and the average fuel prices in either the region specified or the UK average.

To find out the fuel costs from your own average mpg or for an older vehicle – use the quick cost calculator to the right for a tailored cost.​


Calculate Your Fleet

Advanced calculator

1. Select fuel type

Note: More than one fuel type will need to be done in separate calculations

2. Set your mileage

this can be for a year/month/day

3. Choose your vehicle

Your fleet is currently empty.

4. Select a fuel price by region

Results are calculated based on FNO fuel price data, view full table

The Commercial Fleet diesel cost calculator is here to help you in cutting your fuel costs for your fleets.

By using the diesel cost calculator you can calculate how much you are spending on diesel, to show you the cost implications if you were to pay as little as 1 penny less per gallon.

With the calculator, you can enter your entire fleet, various makes and models to get an accurate price on how much your fuel is costing the company.

Once you have used the fuel cost calculator, why not compare petrol prices too, to see if you can find cheaper prices for your fuel.