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Fuel Cost Calculator

Quick answer: Enter distance, MPG, and gas price to calculate road trip fuel cost and cost per mile.

Calculate the fuel cost for any drive — road trip, daily commute, or long-distance travel. Enter your trip distance, vehicle fuel efficiency (MPG), and current gas price to see total fuel cost, cost per mile, and your trip's CO₂ footprint.

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Last reviewed: April 2026Report an error

Total Fuel Cost

$35.00

300 miles at 30 MPG costs $35.00 total ($0.12/mile). CO₂: 196 lbs.

Total Cost

$35.00

Gallons Used

10.00

Cost Per Mile

$0.12

CO₂ Emitted

196 lbs

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How to Use This Fuel Cost Calculator

  1. 1Enter the trip distance in miles.
  2. 2Enter your vehicle's fuel efficiency in MPG.
  3. 3Enter the current gas price per gallon.
  4. 4Optionally enter number of passengers to split cost.
  5. 5Read total cost, gallons needed, cost per mile, and CO₂ emissions.

Frequently Asked Questions

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