Calculate a Mortgage Payment or as many mortage payments as you want with this free online calculator toolbar from EzCalculator.com . Just click on the toolbar, where it says Mortgage Payment Calculator and a very easy to understand mortgage calculator opens up. Enter the amount of the mortgage in question, the interest rate and the term, or length of the mortgage and the calculator will tell you the monthly payment and how much you will have paid together, interst and principal if you were to pay the mortgage in full using the full term of the mortgage. This toolbar will has a news ticker as well.