Fuel Cost Calculator

Estimate the fuel cost for your next journey across the UK. Perfect for budgeting road trips, daily commutes, and everything in between.

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Your Journey Details

How far are you travelling?

UK average is 35-45 MPG

What does your vehicle run on?

Pence per litre (pre-filled with UK avg)

p/L

Journey Cost Results

Total Fuel Cost

£17.62

Cost Per Mile

£0.18

Litres Needed

12.99 L

CO₂ Emissions

30.00 kg

Quick Estimates

Click any route to fill the calculator.

20 routes available

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Understanding Your Fuel Costs

Understanding the factors that contribute to your  vehicle's running costs is the first step towards smarter spending. Our Fuel Cost Calculator is designed to give you a clear picture (see GOV.UK weekly fuel price data) of your expenditure for any given journey. Here's a breakdown of what the numbers mean and how you can use them to your advantage.

Your car's MPG (Miles Per Gallon) is a crucial factor. A higher MPG indicates better fuel efficiency, but your driving style has a huge impact. Aggressive acceleration and hard braking can reduce efficiency by up to 30%. Maintaining a steady speed is one of the most effective ways to maximise your MPG and save money. You can also see how other costs add up with our Take-Home Pay Calculator.

Don't Forget About Hidden Taxes

A large chunk of the price you pay at the pump isn't for the fuel itself. In the UK, fuel costs include significant government taxes. As of March 2026, fuel duty is 52.95 pence per litre, and then VAT at 20% is added on top of both the fuel cost and the duty. This means taxes make up a substantial portion of your total bill.

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Key Factors Affecting Your Fuel Bill

Beyond the pump price, your final cost is influenced by taxes, vehicle efficiency, and CO₂ emissions. Being mindful of your fuel consumption not only saves money but also reduces your carbon footprint. At Calculator Site, we believe in providing tools that help with both your finances and environmental consciousness.

Autos & Vehicles

52.95p

Fuel Duty Per Litre

20%

VAT on Fuel + Duty

~2.3kg

CO₂ Per Litre of Petrol

The CO₂ emissions figure represents the environmental impact of your journey. You can also explore how vehicle running costs are affected by VED using our Car Tax Calculator.

How to use this Calculator Site tool

Simply enter your journey distance, your vehicle's fuel efficiency (in MPG or L/100km), and the current price you're paying for fuel. The  calculator will instantly show you the total cost for the trip, the cost per mile, the litres of fuel needed, and an estimate of your CO₂ emissions. It's the perfect way to budget for your travels.

Frequently Asked Questions

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