Fuel Efficient Car Calculator

Should I upgrade to a more fuel efficient vehicle?

It may make financial sense for you to sell your current vehicle and purchase one with better gas mileage. Taking into account the monthly savings at the pump, the financial question is how many months will it take you to recover the out-of-pocket costs you incur with the purchase of a new vehicle. Use this calculator to help determine your breakeven period.


Gasoline Assumptions
Gasoline cost per gallon ($)
Miles you drive each day
MPG (old vehicle)
MPG (new vehicle)
Cost Assumptions - Old Vehicle
Current monthly payments (old vehicle) ($)
Number of payments remaining
Anticipated sales price ($)
Cost Assumptions - New Vehicle
Estimated monthly payments (new vehicle) ($)
Number of months
Down payment or sales price (if paying with cash) ($)
One-time taxes/registration/fees ($)
State/Federal income tax credit (if applicable) Click here for IRS hybrid tax credit table ($)

DocuMatix , LLC and LGFCU do not assume any fiduciary duties or provide investment advice when you use the calculators and you are encouraged to seek professional financial and legal advice when making financial decisions. Calculations provided may differ from calculations provided by other institutions or advisors. DocuMatix , LLC and LGFCU disclaim all warranties with respect to the calculator and use thereof including any implied warranties of fitness for a particular purpose or merchantability. DocuMatix , LLC and LGFCU shall not be liable for any direct, indirect, incidental, consequential, punitive or other damages suffered by you due to your use of the calculator, including loss of profits. You agree to indemnify, defend and hold harmless DocuMatix , LLC and LGFCU from and against all claims, damages and liabilities related to your use of the calculator.