Fuel Cost Calculator | Trip Gas Budget and Split Cost
Estimate trip fuel cost from distance, fuel consumption, fuel price, and passenger count, including fuel needed and cost per person.
Trip Fuel Cost Estimate
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Estimate Fuel Cost for a Trip
Enter trip distance, vehicle fuel consumption, fuel price, and passenger count to estimate liters needed, total fuel cost, and cost per person.
Use Real Consumption for Better Accuracy
Fuel cost changes with traffic, speed, hills, vehicle load, tire pressure, route choice, and current fuel prices. Use your vehicle average when possible.
About This Tool
Fuel Cost Calculator estimates the petrol or diesel cost of a road trip or daily commute from journey distance, fuel efficiency, and current fuel price. It is used for travel budgeting, expense claims, and comparing vehicle running costs.
When to Use It
Use this before a long road trip to budget fuel costs, when submitting a mileage expense claim, or when comparing the fuel cost of two routes of different distances.
How to Use
- Enter the trip distance.
- Enter the vehicle fuel efficiency in litres per 100 km or miles per gallon.
- Enter the current fuel price per litre or gallon.
- Click Calculate to see the total fuel cost.
Frequently Asked Questions
How do I find my vehicle's fuel efficiency?
Check the manufacturer's specification sheet or owner's manual. Real-world efficiency is usually 10 to 20 percent higher than official test-cycle figures in mixed driving.
Can I compare petrol vs electric running costs?
Use the fuel cost calculator for petrol and the electricity cost calculator for the equivalent electric journey, then compare the cost per mile.
How do I convert mpg to litres per 100 km?
Divide 282.5 by the miles per gallon figure. For example, 40 mpg equals approximately 7.1 litres per 100 km.