Gas Mileage Calculator

Calculate your car's miles per gallon (MPG) and fuel cost per mile based on your odometer readings and fuel consumption. This calculator helps you track your vehicle's fuel efficiency and compare it with EPA estimates.

US Units
Metric Units
Other Units
miles
miles
gallons
per gallon

Results

Distance Traveled 360 miles
Gas Consumption 15 gallons
Miles per Gallon (MPG) 24.00 MPG
Kilometers per Liter 10.20 km/L
Fuel Cost per Mile $0.125
Fuel Cost per Kilometer $0.078
Total Fuel Cost $45.00

About Gas Mileage Calculator

The Gas Mileage Calculator helps you determine your vehicle's fuel efficiency, commonly measured in miles per gallon (MPG) or kilometers per liter (km/L). By tracking your odometer readings and fuel consumption over time, you can calculate your actual MPG and compare it with the EPA estimates for your vehicle.

How to Calculate MPG

To calculate your vehicle's MPG:

  1. Record your odometer reading when you fill up your gas tank (Odometer Reading 1)
  2. Drive normally until you need to fill up again
  3. Record your new odometer reading (Odometer Reading 2)
  4. Note how many gallons of gas it took to fill your tank
  5. Subtract Odometer Reading 1 from Odometer Reading 2 to get miles traveled
  6. Divide miles traveled by gallons used to get MPG

Why Track Your MPG?

Tracking your MPG can help you:

Factors Affecting Gas Mileage

Several factors can influence your vehicle's MPG: