FUEL COST CALCULATOR
Estimate a trip's fuel cost from distance, fuel economy, and price. Nothing leaves your browser.
Total cost48.00
Fuel used (liters)30.00
Cost per km0.120
How to use the fuel cost calculator
- 1
Choose metric (km, L/100km) or imperial (miles, MPG) units.
- 2
Enter the trip distance.
- 3
Enter your vehicle's fuel consumption or economy.
- 4
Enter the current fuel price, then check round trip if it applies.
- 5
Read the total fuel cost, fuel used, and cost per distance unit.
Questions
- How is the fuel cost calculated?
- In metric mode, fuel used = (distance ÷ 100) × L/100km, then multiplied by the price per liter. In imperial mode, fuel used = distance ÷ MPG, then multiplied by the price per gallon.
- What if my car's consumption is shown in km per liter instead of L/100km?
- Convert it first: L/100km = 100 ÷ (km per liter). For example, 14 km/L is about 7.1 L/100km.
- Does the round-trip option double both distance and cost?
- Yes — checking it doubles the trip distance before calculating fuel used and total cost, so you don't have to enter the round-trip distance yourself.
- Is my trip data sent anywhere?
- No. All calculations run locally in your browser with JavaScript — nothing is transmitted or stored.