Auto Loan Calculator  
The Auto Loan Calculator helps you analyze auto loans. How much can you afford to borrow for how long at what interest rate? 



Loan Calculator Tab  
The Loan Calculator Tab allows you to enter basic information used to calculate your loan. 

Loan Amount 
Select this button to figure out the biggest loan you can afford given the interest rate, the loan duration and the monthly payment you can afford. 
Loan Period 
Select this button to figure out how long your debt will last. You would typically solve for the loan period to figure out how an increased monthly payment might reduce the loan term. 
Annual Rate 
Select this button to figure out what happens to the interest rate when you change other loan variables. 
Monthly Payment 
Select this button to figure out what affects the monthly payment. 
Total Interest Paid 
This amount reflects all the interest you have to pay over the life of the loan. 
Results 
The content of the results box changes depending upon which variable you have selected and upon the amounts you enter in the other variables.

Payment Schedule Tab  
The Payment Schedule Tab shows the amortization schedule for the chosen loan. Each row shows a payment number, the interest, the principal and the balance of the loan at that payment number.


Payment Chart Tab  
The Payment Chart Tab shows an area graph with payment values and the distribution of interest, principal and extra principal (if any). Mouse over the graph and move to a payment number to get a readout of interest, principal and extra principal for any one loan period. The pie chart shows you the cumulative distribution of interest, principal and extra payments (if any) at the end of your loan. 

Extra Principal 
Extra Principal is an amount you include with your payment to be used explicitly for paying down the principal, not the interest. The faster you pay down your principal, the shorter your loan will be and the less total interest you have to pay.
