An equated monthly instalment, or EMI, is the fixed amount you pay a lender every month until a loan is fully repaid. Each payment covers part of the interest that has built up and part of the original principal, which is why the balance falls slowly at first and faster later. Understanding this split helps you compare offers from different banks and choose a tenure that fits your budget without overpaying.
To use the calculator below, enter the loan amount you want to borrow, the yearly interest rate quoted by your lender and the repayment period in years. The tool instantly shows your monthly instalment, the total interest you will pay over the life of the loan and the total amount repaid. You can change any value and watch the numbers update, which makes it easy to test several scenarios in a few seconds.
The formula behind the result is standard across banks: EMI equals P multiplied by r multiplied by one plus r raised to n, divided by one plus r raised to n minus one. Here P is the principal, r is the monthly interest rate (yearly rate divided by twelve and by one hundred) and n is the number of monthly payments. Because the rate is applied to the reducing balance, early payments are interest heavy.
A longer tenure lowers each instalment but increases the total interest, sometimes by a surprising amount. A shorter tenure does the opposite: higher monthly outgo, but a much smaller interest bill. Many borrowers pick the shortest tenure they can comfortably afford, and then make small part-payments whenever they have spare cash to cut the interest further.
Before signing any loan agreement, check for processing fees, prepayment charges and whether the interest rate is fixed or floating. These extra costs are not included in a simple EMI figure, but they change the real price of borrowing. Always compare the annual percentage cost, not just the headline rate, and keep a buffer in your monthly budget for unexpected expenses.
This page is provided for general information and illustrates how EMI works. The results are estimates and may differ slightly from the schedule issued by your bank because of rounding, payment dates and fees. For decisions about large loans, please consult your lender or a qualified financial adviser who can look at your complete situation.