MPG Calculator
Calculate fuel efficiency, mileage, and trip costs for your vehicle
Calculate MPG & Fuel Efficiency
Calculation Mode
Enter the total distance you traveled
Enter the amount of fuel consumed for this distance
Enter current fuel price to calculate trip cost
Example Calculation
Highway Trip Example
Trip: Road trip from Austin to Dallas
Distance: 200 miles
Fuel Used: 8 gallons
Gas Price: $3.50 per gallon
Results
MPG = 200 miles ÷ 8 gallons = 25 MPG
Trip Cost = 8 gallons × $3.50 = $28.00
Cost per mile = $28.00 ÷ 200 = $0.14/mile
Fuel Efficiency Guide
US average is approximately 25 MPG
Improve Your MPG
Maintain steady speeds on highways
Keep tires properly inflated
Remove excess weight from vehicle
Avoid aggressive acceleration
Regular vehicle maintenance
Understanding MPG and Fuel Economy
What is MPG?
Miles Per Gallon (MPG) is a measurement of fuel efficiency that indicates how many miles a vehicle can travel using one gallon of fuel. Higher MPG values mean better fuel economy and lower fuel costs.
How to Calculate MPG
MPG = Distance (miles) ÷ Fuel Used (gallons)
Factors Affecting MPG
- •Driving Style: Aggressive driving reduces efficiency
- •Vehicle Condition: Maintenance affects performance
- •Road Conditions: Hills and traffic impact fuel use
- •Weather: Cold weather reduces efficiency
Understanding Your Results
Good Fuel Economy:
- • 30+ MPG for regular cars
- • 25+ MPG for SUVs
- • Lower fuel costs
- • Reduced emissions
Average Economy:
- • 20-30 MPG typical range
- • Standard performance
- • Room for improvement
- • Monitor fuel costs
Poor Economy:
- • Below 20 MPG
- • High fuel costs
- • Check vehicle condition
- • Consider driving habits
Frequently Asked Questions
What is considered good gas mileage?
Good gas mileage varies by vehicle type. For sedans, 25-30 MPG is good, 30+ MPG is excellent. For SUVs and trucks, 20-25 MPG is considered good due to their larger size and weight.
How much gas to drive 300 miles?
With the US average of 25 MPG, you'd need 12 gallons (300 ÷ 25 = 12). At $3.50/gallon, that's $42 in fuel costs. Your actual needs depend on your vehicle's efficiency.
What factors affect my MPG?
Driving habits (aggressive vs. smooth), vehicle maintenance, weather conditions, terrain, vehicle load, tire pressure, and use of air conditioning all significantly impact fuel efficiency.