Gas Mileage (MPG) Calculator
Calculation Results:
Distance Traveled: 0 miles
Gas Mileage: 0 MPG
Cost Per Mile: $0
Total Trip Cost: $0
How to Calculate Gas Mileage Manually
Understanding your vehicle's fuel efficiency is crucial for budgeting and monitoring engine health. Gas mileage is typically measured in Miles Per Gallon (MPG) in the United States or Liters per 100 Kilometers (L/100km) in many other regions.
The Gas Mileage Formula
MPG = (Ending Odometer – Starting Odometer) / Gallons of Fuel Used
Example Calculation
Suppose you fill your tank and your odometer reads 15,000 miles. You drive until the tank is nearly empty and fill it back up. At the second fill-up:
- New Odometer Reading: 15,300 miles
- Fuel Added: 10 gallons
- Price per Gallon: $4.00
First, find the distance: 15,300 – 15,000 = 300 miles. Then, divide by fuel: 300 / 10 = 30 MPG. Your total cost for that trip was $40.00, making it roughly $0.13 per mile.
Tips for Improving Fuel Efficiency
- Maintain Proper Tire Pressure: Under-inflated tires increase rolling resistance and lower MPG.
- Smooth Acceleration: Rapid starts and hard braking consume significantly more fuel.
- Reduce Weight: Carrying unnecessary heavy items in the trunk forces the engine to work harder.
- Regular Maintenance: Clean air filters and fresh spark plugs ensure your engine runs at peak efficiency.