🛠️ Other ToolsFree · No signup
Gas Mileage Calculator
Calculate your car's gas mileage (MPG) or fuel efficiency (L/100km). Compare fuel economy between vehicles.
Gallons Used
10 gal
Total Cost
$35.00
Cost Per Mile
$0.12
How to Use the Gas Mileage Calculator
Enter your values above for an instant result. This tool uses verified formulas and is optimised for users in USA, Canada, UK, Australia. All calculations happen in your browser — your data is never sent to our servers.
Frequently Asked Questions
What is good gas mileage?
For cars, 30+ MPG is good. Hybrids typically get 40–55 MPG. The average new car in 2025 gets about 32 MPG combined.