Recently I purchased a new vehicle. There are a lot of financing calculators on the internet but none worked in exactly the way that I wished, so I made my own.
Complete coverage of the many ways of financing a car are beyond the scope of this calculator. The calculation below will show you how much financing your vehicle will cost, and give you a rough idea of when you'll be "underwater" with your loan (owe more on the car then it is worth).
Depreciation rates are just guidelines.
Use "High" for brands like Kia that have a high rate of depreciation.
Use "Average" for brands like Subaru that have an average rate of depreciation.
Use "Low" for brands like Jeep that have a low rate of depreciation.
Note: This calculator is just for fun. I'm not an accountant, so don't use these numbers on your taxes.