Summary:

The Interest Calculator shows how much total interest and principal you will pay over a specific mortgage term (not the full amortization).
This is useful when you want to understand the true cost of your mortgage during a fixed term before renewal.

Note: Mobile browsers have a simplified UI which may not contain all controls. For best experience, a desktop browser is recommended.

How to open the calculator:

Navigate to the Calculators page using the main menu.
Find Interest Calculator in the list and click the calculator icon.

[Screenshot: Calculators page showing the list of available calculators]

Input Parameters:

Parameter	Description
Borrowed Amount	The current outstanding mortgage balance.
Interest Rate (%)	The annual mortgage interest rate for the term.
Term Left (Years)	The length of the term to analyse (e.g. 5 years).
Amortization (Years)	The remaining amortization used to calculate the payment amount.
Payment Frequency	How often payments are made (Monthly, Bi-Weekly, Weekly, etc.).

[Screenshot: Interest calculator with inputs filled in]

Reading the Results:

The results show for the specified term:

The regular payment amount per period.
Total interest paid during the term.
Total principal repaid during the term.
Remaining balance at the end of the term.

[Screenshot: Interest calculator results showing interest vs principal split]

Tips:

Use the term length (e.g. 5 years) rather than the full amortization to see what you actually pay before your next renewal.
Even a 0.25% rate difference can result in thousands of dollars difference in interest paid over a 5-year term.
Use the Share Link button to compare two scenarios side by side in separate browser tabs.

Additional Information:

See the Payment Calculator help article for full amortization payment details.
See the Penalty Calculator help article to estimate what it would cost to break your term early.