How to Calculate Gas Costs for Your Vehicle
Planning a road trip or budgeting your daily commute? DriveGuruz's free gas cost calculator helps you estimate exactly how much you'll spend on fuel. Whether you're comparing a used SUV with a used sedan or figuring out the cost of a cross-country drive, our tool gives you instant, accurate results.
Simply enter your vehicle's miles per gallon (MPG), the current gas price per gallon in your area, and the total distance you plan to drive. The calculator will instantly show your estimated fuel cost, helping you budget for road trips, commutes, and vehicle comparisons.
How to Use This Tool
- Enter your vehicle's MPG (miles per gallon) rating — you can find this in your owner's manual or on fueleconomy.gov.
- Input the current gas price per gallon in your area. The national average is typically between $3.00 and $4.50.
- Enter the total distance of your trip or daily commute in miles.
- The calculator will instantly display your estimated total gas cost for the trip.
Frequently Asked Questions
How do I calculate gas cost for a road trip?
To calculate gas cost for a road trip, divide the total trip distance by your vehicle's MPG to get the gallons needed, then multiply by the current gas price per gallon. For example, a 300-mile trip in a car that gets 25 MPG at $4.00/gallon would cost: (300 ÷ 25) × $4.00 = $48.00 in gas.
What is the average MPG for a used car?
The average MPG for a used car varies by type. Used sedans typically get 25-35 MPG, used SUVs get 20-28 MPG, used trucks get 15-22 MPG, and used hybrid cars can get 40-50+ MPG. Check your specific vehicle's EPA rating on the fueleconomy.gov website for the most accurate number.
How much does it cost to drive one mile?
The cost per mile depends on your vehicle's fuel efficiency and local gas prices. At $4.00 per gallon, a car getting 25 MPG costs about $0.16 per mile. A truck getting 18 MPG costs about $0.22 per mile. Use our calculator above to find your exact cost per mile.
How can I save money on gas?
To save money on gas: maintain proper tire pressure, avoid aggressive driving (rapid acceleration and braking), use cruise control on highways, remove excess weight from your vehicle, combine errands into single trips, and consider a more fuel-efficient vehicle. Switching from a 15 MPG truck to a 30 MPG sedan can cut your gas costs in half.