Fuel Cost Calculator
The Fuel Cost Calculator estimates how much gas a trip will cost based on distance, your vehicle's fuel economy, and the local price per gallon.
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How This Tool Works
Enter your trip distance, your vehicle's miles per gallon, and the current price of gas to calculate total fuel cost.
Formula & Method
Gallons needed = distance ÷ MPG. Fuel cost = gallons needed × price per gallon.
Example Calculation
A 300-mile trip in a car that gets 30 MPG, with gas at $3.50/gallon, costs about $35 in fuel.
Frequently Asked Questions
How do I find my car's MPG?+
Check your owner's manual for the EPA-estimated MPG, or use our MPG Calculator to compute your actual real-world fuel economy from a recent fill-up.
Does this account for highway vs. city driving?+
No, it uses a single MPG value you provide. For more accuracy, use an average MPG that reflects your mix of highway and city driving on the trip.
Should I add a buffer for traffic or detours?+
Yes, if you expect significant traffic or route changes, add 10–15% to your distance estimate to account for extra fuel use from idling and detours.
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