Gas Mileage Calculator

Maintain proper tire pressure, avoid aggressive acceleration, reduce idling, and remove excess weight.

Yes, running AC can reduce MPG by 5-25% depending on driving conditions and vehicle.

Track total miles and total gallons across 3-5 consecutive fill-ups, then divide cumulative miles by cumulative gallons for a more accurate long-term average.

Cold weather reduces MPG by 12-22% on short trips due to thicker engine oil, longer warm-up times, and increased aerodynamic drag from colder, denser air.