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Road Trip Fuel Cost Estimator

Adds up what gas will cost for a drive based on distance, your MPG, and the price per gallon. It shows gallons burned, total cost, cost per mile, and cost split per passenger.

How to use
  1. Enter the trip distance in miles or km.
  2. Enter your vehicle's MPG or pick a preset.
  3. Enter the price per gallon.
Vehicle
Total trip fuel cost
$42.00

300 mi ÷ 25 MPG × $3.50

Gallons used
12.00 gal
Cost per mile
$0.140/mi
Cost per passenger
$42.00
Trip distance
300 mi
Estimates for general information, verify important figures before relying on them.
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Worked examples

DistanceMPGPrice/galTotal cost
300 mi25$3.50$42.00
500 mi30$3.50$58.33
1000 mi20$4.00$200.00

Common questions

How do I split the gas cost with passengers?

Enter the number of people and the tool divides the total fuel cost evenly. It's handy for carpools and shared road trips.

What if I don't know my car's MPG?

Use one of the vehicle presets as a starting point, or divide your usual miles driven by gallons filled to estimate it.