Finance

Fuel cost calculator

Calculate the fuel cost of any trip from distance, fuel efficiency (MPG or L/100km), and fuel price.

Distance

Fuel efficiency

Fuel price

Currency symbol

—Fuel needed

—Total cost

—Cost per km

100% private. All processing happens locally in your browser — no files or data are ever sent to a server.

How to use Fuel cost calculator

01 Fill in the required values using the fields provided
02 Results calculate automatically as you type
03 Copy or note the result — all calculations stay on your device

Frequently asked questions

Common questions about Fuel cost calculator.

Is Fuel cost calculator free to use?

Yes, Fuel cost calculator is completely free. No account, subscription, or payment is ever required — just open the page and start using it.

Does Fuel cost calculator upload my data to a server?

No. Fuel cost calculator runs entirely in your web browser using client-side JavaScript. Your files, text, and data never leave your device, making it 100% private.

Can I use Fuel cost calculator on my phone or tablet?

Yes. Fuel cost calculator is fully responsive and works on all modern smartphones, tablets, and desktop browsers without installing any app.

Are these results accurate enough to rely on?

Fuel cost calculator uses well-established formulas and provides accurate estimates for everyday use. For financial, medical, or legal decisions, always consult a qualified professional.

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About Fuel cost calculator

The Fuel Cost Calculator estimates the total cost of a road trip from three inputs: distance, fuel efficiency, and the price you're paying at the pump. It supports both metric (km and L/100km) and imperial (miles and MPG) inputs so it works for UK, US, and European drivers without any mental conversion. The tool shows total litres or gallons needed alongside total cost and cost per kilometre or mile, giving a useful picture of the true per-journey expense — helpful when comparing driving costs against train or flight alternatives.