Fuel Cost Calculator

How to use

1. Enter Trip Distance — Type the total distance of your journey in kilometres or miles.
2. Set Fuel Efficiency — Enter your vehicle's fuel economy in MPG, L/100km, or km/L.
3. Set Fuel Price — Enter the current price per litre or gallon in your local currency.
4. View Cost Breakdown — See total fuel needed, total cost, and cost per kilometre or mile instantly.

Free Fuel Cost Calculator

Calculate how much fuel a trip will consume and what it will cost. Supports MPG (US and UK), L/100km, km/L, and multiple currencies. 100% private.

Common Uses

• Budget for road trips and long drives
• Compare fuel costs for different vehicles
• Estimate commute expenses per month
• Plan delivery or logistics routes
• Split fuel costs fairly among passengers

How It Works

The calculator normalises all inputs to litres and kilometres internally. Fuel needed = distance × (litres per 100 km / 100). Total cost = fuel needed × price per litre. Cost per km = total cost / distance.

Privacy

No data is transmitted. All calculations happen locally.

Related: Unit Converter, Tip Calculator, Percentage Calculator.

Frequently asked questions

Which efficiency units are supported?

US MPG, UK MPG, litres per 100 km, and kilometres per litre. The calculator auto-converts everything internally.

Can I use miles instead of kilometres?

Yes. Enter your distance in the same unit your efficiency is measured in, or use km for distance and let the calculator handle conversions.

Does it include road tolls or parking?

No. This tool only calculates fuel costs. Add tolls and parking separately for a complete trip budget.

How accurate is the conversion?

Conversions use standard constants (1 US gallon = 3.78541 L, 1 UK gallon = 4.54609 L). Results are accurate to two decimal places for planning purposes.

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