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Fuel Cost Calculator
Enter your trip distance, car’s fuel efficiency, and gas price to calculate the total fuel cost.
All calculations run in your browser — nothing is sent or stored. Browse all free tools · Etsy Shop ↗
Frequently Asked Questions
How do I calculate road trip fuel cost?
Divide distance by MPG to get gallons used, then multiply by gas price. Example: 500 miles ÷ 30 MPG = 16.7 gallons × $3.50 = $58.33. This calculator handles all unit conversions automatically.
How does number of passengers affect cost?
The calculator splits total fuel cost equally by passengers. A 4-person carpool sharing $60 in fuel each pays $15 — making a road trip far cheaper than flying or renting individual cars. Gas cost per mile is typically 10-15¢ for modern vehicles.