On average, Americans are now paying about 15 cents a mile for the gas they buy, but the cost varies widely, depending on the vehicle. Gas price per mile for common vehicles. Vehicle Miles per gallon Gas price, per mile Ford F-150 14 $0.21 Toyota Sequoia 15 $0.20 GMC Envoy 15 $0.20 BMW X5 17 $0.17 Click to see full answer. Simply so, how much does gas cost per mile? Based on Driving 15,000 miles annually Small Sedan Sedan Average Cost Per Mile 46.4 cents 60.8 cents Cost Per Year $6,967 $9,122 Additionally, how do I calculate gas cost for a trip? Calculate the overall gas cost of your trip First, divide the distance of the route by your miles per gallon figure to find out how many gallons of gas you will need. After that, multiply the number of gallons by the price of gas to calculate the gas cost for your journey. Secondly, does premium gas give better mileage? Premium gives better gas mileage Because premium gas has a higher octane rating than midgrade or regular gas, it produces a little more power when burnt. Designed for performance cars with large, powerful engines, premium also helps minimize the risk of preignition inside highly-stressed, hot engine cylinders.How do I calculate my car cost per mile?Divide your specific vehicle type’s cost number by 15,000, the average number of miles driven each year according to AAA. For example, if you drive a large sedan, divide 5,091 by 15,000 to get 0.3394. This tells you that your wear and tear cost is 33.94 cents per mile.