If your mortgage is up for renewal soon, or you are looking to buy a new home, you will want to do some research in order to find the best possible mortgage rate. For Canadians, I would recommend that you check out the Ratesupermarket website. It is very easy to use and once you fill in some basic information, it will find the results in your local area quickly.
The results will include the approximate amount of your monthly payments, how much interest you would expect to pay throughout the mortgage term assuming the rate remains the same, and more.