Gas Mileage Calculator
Calculate your vehicle's fuel efficiency (MPG) and estimate trip costs.
GasBuddy
Find the cheapest gas prices near you
Important Legal Disclaimer
For Educational and Informational Purposes Only: This calculator provides estimates and approximations based on the information you provide. Results are not exact and should not be relied upon for any official, legal, financial, medical, or professional purposes.
No Professional Advice: The calculations and information provided do not constitute financial advice, legal advice, tax advice, medical advice, or any other form of professional consultation. Always consult with qualified professionals (financial advisors, attorneys, tax professionals, healthcare providers, etc.) before making important decisions.
No Liability: By using this calculator, you acknowledge that the results are estimates only. We make no warranties or guarantees about the accuracy, completeness, or reliability of the calculations. Use of this tool is at your own risk.
This disclaimer complies with applicable U.S. federal and state laws regarding the provision of informational tools and the limitation of liability for educational resources.
Abbreviations Explained
MPG (Miles Per Gallon): A measure of fuel efficiency indicating how many miles a vehicle can travel on one gallon of fuel.
Fuel Economy: The efficiency with which a vehicle uses fuel, typically measured in MPG.
Trip Distance: The total number of miles traveled on a journey.
Fuel Consumed: The amount of gasoline used during a trip, measured in gallons.
Cost Per Gallon: The price of one gallon of gasoline at the pump.
EPA (Environmental Protection Agency): U.S. agency that provides official fuel economy ratings for vehicles.
How the Calculation Works
Fuel efficiency and cost calculations:
Calculate MPG:
Example: 300 miles on 12 gallons = 300 / 12 = 25 MPG
Calculate Fuel Needed:
Example: 400-mile trip, 25 MPG = 400 / 25 = 16 gallons
Calculate Trip Cost:
Example: 16 gallons at $3.50/gallon = 16 × $3.50 = $56
US Average Fuel Economy (2024):
• Passenger Cars: 25-35 MPG
• SUVs: 20-28 MPG
• Trucks: 18-25 MPG
• Hybrids: 40-55 MPG
Find Automotive Services
Explore these helpful automotive and fuel-saving resources:
Auto Services by City
Find auto repair and service centers in major US cities: