a mortgage You can use an EMI (Equated Monthly Installment) calculator to figure out how much you will have to pay each month towards your mortgage. Here are the steps to using an EMI calculator for a house loan:Put the loan amount here: You wish to borrow from the bank this amount.The loan tenure is the length of time you want to borrow money.Enter the interest rate, which represents the cost of the loan that the bank will charge you.Once you have provided all the necessary information, click the calculate button to obtain the EMI amount.