Fuel Cost Calculator
Calculate how much fuel will cost for a trip of any distance.
Enter your numbers and select Calculate to see results.
About This Calculator
This calculator estimates the total fuel cost for a trip based on the distance, your vehicle's fuel economy, and the price of gas per gallon. Useful for budgeting road trips or your regular commute costs.
How This Is Calculated
Fuel Cost = (Distance ÷ MPG) × Price per Gallon
A 300-mile trip at 28 MPG with gas at $3.40/gallon costs about $36.43 in fuel.
Assumptions
- Assumes steady fuel economy for the entire trip; highway vs. city driving can shift actual MPG.
Frequently Asked Questions
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Last updated January 15, 2026. Results are estimates for informational purposes only — read our disclaimer.