MPG calculator
Calculate your miles per gallon quickly and accurately.
How to calculate MPG
Calculating your miles per gallon (MPG) is simple. You need two numbers:
MPG = Miles Driven ÷ Gallons Used
For example, if you drove 350 miles and used 12.5 gallons of gas, your fuel economy is 28 MPG.
How to track your gas mileage
- Fill up your tank completely and note your odometer reading (or reset your trip meter).
- Drive normally until you need to refuel.
- Fill up again and note how many gallons it took and your new odometer reading.
- Subtract the old odometer reading from the new one to get miles driven.
- Divide miles by gallons: that's your MPG.
What is good MPG?
Average fuel economy varies by vehicle type. Here's a general guide:
| Vehicle Type | Average MPG | Rating |
|---|---|---|
| Large SUV / Truck | 15–20 MPG | Below average |
| Midsize SUV / Crossover | 22–28 MPG | Average |
| Sedan / Compact Car | 28–35 MPG | Good |
| Hybrid | 40–55 MPG | Excellent |
| Plug-in Hybrid | 55–100+ MPGe | Outstanding |
Tips to improve your MPG
- ✓Keep tires properly inflated. Under-inflated tires increase rolling resistance and reduce MPG by up to 3%.
- ✓Drive at steady speeds. Aggressive acceleration and braking can lower fuel economy by 15–30% on the highway.
- ✓Reduce excess weight. Every 100 lbs of extra weight reduces MPG by about 1%.
- ✓Use cruise control on highways. Maintaining a constant speed avoids fuel-wasting speed fluctuations.
- ✓Keep up with maintenance. Clean air filters, fresh spark plugs, and proper oil all improve efficiency.