Mortgage Loan Calculator | Credit Union Financial Tools & Resources Skip to main content

Mortgage Loan Calculator

Use this calculator to generate an estimated amortization schedule for your current mortgage. Quickly see how much interest you could pay and your estimated principal balances. You can even determine the impact of any principal prepayments! Fill out the fields below to get started.

Definitions:

Mortgage Amount: the original or expected balance for your mortgage.

Term In Years: the number of years over which you will repay this loan. The most common mortgage terms are 15 years and 30 years.

Interest Rate: the annual fixed interest rate for this mortgage.

Monthly Payment: monthly principal and interest payment (PI).

Total Payments: the total of all monthly payments over the full term of the mortgage. This total payment amount assumes that there are no prepayments of principal.

Total Interest: the total of all interest paid over the full term of the mortgage. This total interest amount assumes that there are no prepayments of principal.

Prepayment Type: the frequency of prepayment. The options are: none, monthly, yearly, and one-time payment.

Prepayment Amount: the amount that will be prepaid on your mortgage. This amount will be applied to the mortgage principal balance, based on the prepayment type.

Start With Payment: the payment number that your prepayments will begin with. For a one time payment, this is the payment number that the single prepayment will be included in. All prepayments of principal are assumed to be received by your lender in time to be included in the following month’s interest calculation. If you choose to prepay with a one-time payment for payment number ZERO, the prepayment is assumed to happen before the first payment of the loan.

Savings: the total amount of interest you will save by prepaying your mortgage.

 

Information and interactive calculators are made available to you as self-help tools for your independent use and are not intended to provide investment advice. We cannot and do not guarantee their applicability or accuracy in regards to your individual circumstances. All examples are hypothetical and are for illustrative purposes. We encourage you to seek personalized advice from qualified professionals regarding all personal finance issues.