Gas Mileage (MPG) Calculator
Calculate your vehicle's fuel efficiency and trip costs quickly.
Fuel Efficiency:
0.00 MPG
Cost per Mile:
$0.00
Total Fuel Cost:
$0.00
Distance per 10 Gallons:
0 Miles
How to Calculate Your Gas Mileage
Understanding your vehicle's fuel economy (MPG) is essential for budgeting and monitoring your car's health. To calculate MPG manually, you divide the total miles driven by the number of gallons it took to refill the tank.
The Formula:
Miles Driven รท Gallons Used = Miles Per Gallon (MPG)
Practical Example
Imagine you fill your tank and reset your trip odometer. After driving for a week, your trip meter shows 300 miles. You return to the gas station and it takes 10 gallons to fill the tank back up. Your calculation would be:
- 300 miles / 10 gallons = 30 MPG
- If gas costs $3.50 per gallon, your trip cost $35.00 total.
- Your cost per mile would be $0.11 ($35.00 / 300 miles).
Tips for Improving Fuel Efficiency
- Maintain Tire Pressure: Under-inflated tires increase rolling resistance and lower MPG.
- Smooth Acceleration: Avoid "jackrabbit" starts and hard braking to save up to 15-30% on fuel.
- Reduce Weight: Remove unnecessary heavy items from your trunk or roof rack.
- Regular Maintenance: Clean air filters and fresh spark plugs ensure your engine runs efficiently.
Why Monitor Your MPG?
A sudden drop in fuel efficiency is often the first sign of an underlying mechanical issue, such as a failing oxygen sensor, clogged fuel injector, or dragging brake caliper. By using this gas MPG calculator regularly, you can catch these problems before they become expensive repairs.