Fuel Cost Calculator for Fuel Savings

FuelMarble’s Fuel Cost Calculator helps drivers and fleet operators estimate annual fuel expenses, fuel consumption, and potential savings with improved engine efficiency.

Enter your mileage/km, fuel price, and efficiency to instantly see your fuel cost per trip, per month, and per year. This tool is compatible with petrol, diesel, vans, cars, and delivery fleets.

How a Small Delivery Company Can Save Over £4,000 a Year with FuelMarble →

Fuel Consumption Calculator for Cars, Vans and Fleets

This calculator also shows how improved combustion efficiency can reduce fuel costs. FuelMarble users typically report average 7%–15% efficiency gains based on independent tests.

Sample Calculation: Annual Fuel Cost and Savings

Here is a simple example showing how fuel cost changes with fuel efficiency.

A driver who travels 20,000 miles per year with a fuel efficiency of 40 mpg and a fuel price of £1.40 per litre will spend approximately £3,182 per year on fuel.

If the same vehicle improves efficiency by +10%, the annual fuel cost decreases to £2,894, creating a yearly saving of £288.

This example illustrates a clear pattern: a small improvement in efficiency produces measurable annual savings, especially for drivers who travel high mileage. The Fuel Cost Calculator allows these values to be adjusted so users can model their own fuel cost, consumption, and potential savings.

Frequently Asked Questions about Fuel Cost Calculator

Multi-Stop Route Planner and Fuel Estimator

How to optimize your trip? Organize your trip using our all-in-one route planner. Create a multi-stop itinerary with autocomplete, rearrange your stops for optimal efficiency, and get precise fuel cost estimates as well as price per litre.