Fuel Cost Calculator
Total fuel cost
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Fuel used
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Cost per mile
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Enter distance, efficiency, and fuel price above
Common MPG by vehicle type
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How Is Fuel Cost Calculated?
The formula is straightforward:
For metric: Liters used = Distance (km) x L/100km / 100. Then multiply by price per liter.
Common Road Trip Fuel Costs
Assumes 30 MPG and $3.50/gallon
Frequently Asked Questions
How do I find my car's MPG?
Check fueleconomy.gov for EPA-rated MPG by year, make, and model. For real-world MPG, fill your tank, reset your trip odometer, drive normally, then refill and divide miles driven by gallons used. Real-world MPG is typically 10-20% lower than EPA estimates.
What factors affect fuel economy?
Highway driving is more efficient than city driving for most vehicles. Tire pressure, speed (fuel economy drops significantly above 60 mph), AC use, cargo weight, and vehicle age all affect MPG. Cold weather can reduce fuel economy by 15-25% due to engine warm-up and battery drain.