Gas is usually the biggest cost of a road trip, and it is easy to guess wrong. Here is a simple way to estimate it before you leave.
You only need three numbers: your total miles, your car's mpg and the gas price.
A 600-mile round trip in a car that gets 30 mpg needs 20 gallons. At $4.50 a gallon, that is $90 for gas.
Use this free road trip fuel cost calculator to get your number in seconds. More free car cost tools at AutoExperts Hub.