Fuel Cost Calculator
Calculate the fuel cost of any trip by entering distance, fuel consumption, and price. Supports metric (km, L/100km) and imperial (miles, MPG), round trips, and passenger cost splitting.
Calculate the fuel cost of any trip by entering your distance, vehicle fuel consumption, and fuel price — with support for both metric and imperial units.
How to Use
- Select Metric (km, L/100km, price per litre) or Imperial (miles, MPG, price per gallon)
- Enter the trip distance
- Enter your vehicle's fuel consumption rate
- Enter the current fuel price
- Optionally enable Round trip to double the distance automatically
- Enter the number of passengers to split the cost
- Click Calculate to see fuel needed, total cost, cost per km/mile, and per-person cost
Formula
Metric:
- Fuel (L) = Distance (km) × Consumption (L/100km) ÷ 100
- Total Cost = Fuel (L) × Price per litre
Imperial:
- Fuel (gal) = Distance (miles) ÷ MPG
- Total Cost = Fuel (gal) × Price per gallon
Example Calculation
| Parameter | Value |
|---|---|
| Distance | 350 km |
| Consumption | 8.0 L/100km |
| Fuel price | $1.90 / L |
| Fuel needed | 28 L |
| Total cost | $53.20 |
| Cost per km | $0.152 |
Tips
- Use your vehicle's official combined cycle figure for a realistic estimate
- Enable round trip before a return journey to get the full budget at a glance
- Enter the number of passengers to automatically split costs evenly
- The currency symbol field accepts any character — use
€,£,₺, or any local sign
FAQ
How do I find my car's fuel consumption?
Check your vehicle's manual, the manufacturer's website, or a fuel economy database. The combined cycle figure is the most realistic for mixed driving. You can also track it manually: fill the tank, drive a known distance, refill, and divide litres used by distance times 100.
What does MPG mean?
MPG stands for miles per gallon. A higher MPG means better fuel efficiency — the car travels more miles on the same amount of fuel. In metric countries, fuel efficiency is expressed as litres per 100 kilometres (L/100km), where a lower number means better efficiency.
Does the tool account for fuel price changes during the trip?
No — the calculation uses a single fixed price. For long trips where prices vary, enter an average price across the route for a reasonable estimate.
Can I calculate cost in any currency?
Yes. The currency symbol field is a free-text input — type any symbol (€, £, ₺, ¥, etc.) and it will appear in the result. The calculator does not perform any currency conversion.
Is the result exact?
The result is as accurate as the inputs. Real-world fuel consumption varies with driving style, speed, load, air conditioning, and road conditions. Treat the output as a close estimate rather than a guaranteed figure.