Fuel Economy Comparison Calculator
Compare the annual fuel cost of two vehicles and find your break-even point
Frequently Asked Questions
Annual fuel cost = (annual miles ÷ MPG) × price per gallon. This gives the gallons consumed per year, then multiplies by the fuel price to get the total annual cost.
Break-even = price difference between the two vehicles ÷ annual fuel savings. It tells you how many years of driving it takes for the more efficient vehicle's fuel savings to offset a higher purchase price.
No, this compares fuel cost only. A full cost-of-ownership comparison would also need to factor in differences in insurance, maintenance, depreciation, and financing costs between the two vehicles.
How this is calculated
Annual fuel cost = (annual miles ÷ MPG) × price per gallon, calculated separately for each vehicle. Break-even = price difference ÷ annual fuel savings.