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MPG & Fuel Consumption Calculator

Automotive Tools

Calculate your vehicle’s miles per gallon (MPG) or liters per 100km using actual fuel and distance data. Great for older vehicles where factory ratings no longer apply.

How to Use MPG & Fuel Consumption Calculator

To find your real MPG: Fill up your tank, reset your trip odometer, drive normally, then refuel and enter the distance traveled and amount of fuel added. The calculator will show your true MPG or km/L.

Frequently Asked Questions

How do I calculate fuel consumption?

Fill your tank, drive, then refill and note the distance traveled and fuel used. Divide distance by fuel to get MPG or km/L. Our calculator does the math for you.

Why is this useful for older cars?

Factory MPG ratings often don’t reflect real-world usage, especially as vehicles age. This calculator helps you know your actual fuel economy now.

What is a good MPG for a car?

It depends on your vehicle type and age. Compact cars often get 30–40 MPG, while trucks and SUVs may get 15–25 MPG. Our tool helps you compare realistically.

Can I use kilometers and liters?

Yes. You can calculate using kilometers and liters, or miles and gallons. Select your preferred units in the calculator.

What’s the difference between MPG and L/100km?

MPG measures distance per fuel volume. L/100km measures how much fuel is used per 100 km. Lower L/100km is better, while higher MPG is better.

Can this help me save on fuel?

Yes. By tracking your MPG, you can detect changes in performance or adjust driving habits to improve fuel efficiency.

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