Well, isn't that a lovely question. To calculate how much gas you'll need to drive 15 miles, you'll want to consider your car's miles per gallon (MPG) rating. If your car gets 30 MPG, then driving 15 miles would require half a gallon of gas. It's all about finding the joy in the journey, my friend.
7.6470588 gallons
26 gallons = 598 Miles 27 gallons = 621 Miles 26.08695651 gallons = 600 Miles
29.16 Gallons.
40 gallons !
About 46.875 gallons of gas.
12.5 gallons
31.81 gallons.
46.6 gallons.
32 gallons
48 gallons
At 22 miles per gallon, it would take 53 gallons. At 30 mpg, it would take almost 39 gallons.
About 16.8 gallons. 420 miles / 25 miles per gallon = 16.8 gallons