MPG Comparison Calculator
Compare fuel costs between two vehicles.
Enter MPG for each car, annual miles, and gas price to see annual savings.
Annual Fuel Savings
MPG Comparison helps you see the real-dollar difference in fuel costs between two vehicles.
Formula:
Annual Fuel Cost = Annual Miles / MPG × Gas Price per Gallon
Annual Savings = Cost of Car B - Cost of Car A
Key insights:
- Going from 15 to 25 MPG saves more fuel than going from 35 to 50 MPG for the same miles driven
- The average American drives about 13,500 miles per year
- Even a 5 MPG difference can mean $300–$600 in annual savings at typical gas prices