Fuel Cost Calculator
Calculate fuel costs for any trip. Enter distance, fuel efficiency, and gas price to estimate your trip cost and fuel needed.
Unit System
Trip Details
Results
0
Fuel Needed
$0.00
Total Cost
$0.00
Cost Per Mile
$0.00
Cost Per Km
Frequently Asked Questions
How do I calculate the fuel cost for a road trip?▾
Enter the trip distance, your vehicle's fuel efficiency (MPG or L/100km), and the current fuel price. The calculator instantly shows total fuel needed and estimated cost.
What is the difference between MPG and L/100km?▾
MPG (miles per gallon) is used in the US, while L/100km (liters per 100 kilometers) is the standard in most other countries. Higher MPG means better efficiency; lower L/100km means better efficiency.
How do I estimate gas cost for a round trip?▾
Toggle the round-trip option to automatically double your distance. The calculator will show the total fuel and cost for both legs of the journey.
Is this fuel cost calculator free to use?▾
Yes. This calculator runs entirely in your browser with no signup required. No data is sent to any server.