Mortgage Calculator
 
First Payment Year
Mortgage Amount $
Interest Rate %
Mortgage Length Years
Payment Frequency

Payment Amount
Total Interest
Payment Breakdown Calculator

This calculator will help you to determine the principal and interest breakdown on any given payment number. Simply enter the loan's original terms (principal, interest rate, number of payments, and monthly payment amount) and click on the "Compute" button.

Note: Other than decimal points, do not enter any other non-numeric characters (commas, dollar signs, etc.) in the entry boxes. Doing so will cause a JavaScript error.
Original principal amount borrowed:
What is the loan's annual interest rate?
Original number of payments:
Loan's monthly payment amount?
Which payment number would you like broken down?
This is the principal portion of the entered payment #:
This is the interest portion of the entered payment #:
Please allow for slight rounding differences.
Should you refinance your mortgage?

Whenever interest rates drop, the appeal of refinancing your mortgage grows. But it's important to know the real costs -- and potential savings -- before making a move. To use the worksheet, JavaScript must be enabled on your browser.

Instructions. Just fill in the non-colored boxes with the requested information. As you tab or mouse-click through the boxes, your results will appear automatically in the colored boxes. You can change any of your entries, in case you want to try several different scenarios, but you must tab or mouse-click to another box to update your results.
Information on your CURRENT mortgage
What was the month in which this mortgage originated?
What was the year in which this mortgage originated?
What was the original amount of this mortgage?
What is the term of this mortgage? year
What is the interest rate?
Information on your NEW mortgage
What is the mortgage amount? (The value at right is the calculated amount you currently owe)
What is the term of this mortgage? year
What is the interest rate?
What are your estimated closing costs, including any points paid upfront?

The Results
Your current monthly payment is
Your new monthly payment will be
If you refinance now, your monthly payments will be reduced by
It will take this long to "break even," or recover closing costs on the new mortgage

Mortgage analysis CURRENT Loan NEW Loan
Number of payments made so far
Number of remaining payments at refinance date
Total interest paid as of refinance date
Total unpaid interest at refinance date
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