Fuel & Economy Calculators
Calculate fuel costs, MPG, journey fuel usage, and compare petrol vs diesel running costs.
MPG Calculator
Calculate your car's miles per gallon from distance and fuel used.
Fuel Cost Calculator
Work out the fuel cost for any journey based on distance and fuel price.
Journey Fuel Calculator
Calculate how much fuel you need for a specific journey.
Litres Per 100km Calculator
Convert your fuel consumption to the European litres per 100km standard.
Fuel Tank Range Calculator
Find out how far you can drive on a full tank of fuel.
Annual Fuel Cost Calculator
Estimate your total yearly fuel spending based on mileage and consumption.
Petrol vs Diesel Calculator
Compare the total running costs of petrol and diesel versions of the same car.
E10 vs E5 Calculator
Compare the cost difference between E10 and E5 (premium) petrol.
Fuel Price Comparison Calculator
Compare fuel prices and see how much you save by shopping around.
Miles Per Litre Calculator
Calculate your fuel economy in miles per litre.
10 free calculators in Fuel & Economy
Free Fuel Economy Calculators for UK Drivers
With fuel prices constantly changing, understanding your car's fuel economy is more important than ever. Our fuel and economy calculators help you track consumption, plan journey costs, and make informed decisions about which fuel type saves you the most money over time.
The MPG calculator lets you work out your real-world miles per gallon from brim-to-brim fills, while the fuel cost calculator shows you exactly what any journey will cost. For those choosing between petrol and diesel, our comparison tool factors in the higher diesel pump price against better fuel economy to show you the true picture over your annual mileage.
Since the introduction of E10 petrol in September 2021, many UK drivers have noticed changes in their fuel economy. Our E10 vs E5 calculator helps you work out whether paying extra for super unleaded E5 actually saves you money, factoring in the typical 1-2% reduction in economy that E10 can cause.