How to calculate gas cost
Cost = Miles ÷ MPG × Price per gallon
A 350-mile trip in a car that gets 28 mpg uses 12.5 gallons. At $3.25 a gallon, that's about $40.63.
Ways to use less fuel
- Keep tires inflated to the pressure on the driver's door sticker.
- Drive at a steady speed; fuel economy usually drops at highway speeds above about 50 to 60 mph.
- Remove roof racks and extra weight when you don't need them.
Frequently asked questions
Where do I find my car's MPG?
Check your dashboard's trip computer or the window sticker. For a quick estimate, use the combined MPG rating for your model.
How do I compare an EV?
Electric cars use kilowatt-hours instead of gallons. Multiply miles by the car's kWh per mile and by your electricity rate.