Loan EMI Calculator Calculate Monthly Payment & Total Interest
Find your exact monthly EMI, total interest cost, and full amortization schedule for any loan. Supports home loans, car loans, and personal loans. Instant results, no sign up needed.
How This Loan EMI Calculator Works
This loan EMI calculator uses the standard reducing balance formula: EMI = P × r(1+r)n / ((1+r)n − 1). Here P is the principal loan amount, r is the monthly interest rate (annual rate ÷ 12 ÷ 100), and n is the total number of monthly installments. This is the same formula used by all major banks and non banking financial companies for home loans, personal loans, and car loans.
The results section shows your monthly EMI alongside total interest paid, total repayment amount, and a visual breakdown of principal versus interest as a proportion of total cost. This helps you see at a glance how much of your total payment goes to the lender as profit versus repaying the actual amount borrowed.
Enable the amortization schedule to see a year by year table of principal repaid, interest paid, total paid, and closing balance for each year. This is invaluable for planning lump sum prepayments, compare the outstanding balance at any year and see exactly how much interest you would save by paying off the loan earlier.
What this tool does
How to use it
Enter loan amount
Enter the total loan amount (principal) you want to borrow or have already taken.
Set rate and tenure
Enter the annual interest rate and loan tenure in years or months. Use a preset for common loan types.
Calculate
Click Calculate EMI to see your monthly payment, total interest, and principal vs interest breakdown.
Review schedule
Toggle the amortization schedule to see year by year repayment details and plan prepayments.
Frequently Asked Questions
EMI stands for Equated Monthly Installment. It is the fixed amount you pay to the lender each month to repay a loan over a specified tenure. The formula is: EMI = P x r x (1+r)^n / ((1+r)^n – 1), where P is the principal loan amount, r is the monthly interest rate (annual rate divided by 12, then by 100), and n is the number of monthly installments. This formula ensures each payment covers the interest due for that month plus a portion of the principal.
Flat rate interest is calculated on the original loan amount for the entire tenure, so the interest does not decrease as you repay the principal. Reducing balance (diminishing balance) interest is calculated only on the outstanding principal each month. This calculator uses the reducing balance method, which is the standard for home loans, personal loans, and auto loans. A flat rate of 10% is significantly more expensive than a reducing balance rate of 10% because the effective rate for flat is roughly double.
A longer tenure means more monthly payments, each carrying an interest component calculated on the remaining balance. While a longer tenure reduces your monthly EMI and improves cash flow, you pay interest for a greater number of months. For a Rs 50 lakh home loan at 8.5%, a 20 year tenure costs about 2x the principal in total interest, while a 10 year tenure costs about 60% of the principal. Prepaying principal early in the loan term has the most impact because it reduces the base on which interest compounds.
Making a lump sum prepayment reduces your outstanding principal immediately. In a reducing balance loan, this means subsequent EMIs carry less interest and more principal, effectively shortening your tenure or reducing your EMI. A prepayment made in the first few years of a long term loan (when you are still in the interest heavy phase) saves significantly more than the same amount paid later. Some lenders charge a prepayment penalty, typically 2 to 4% of the prepaid amount, particularly for fixed rate loans.
Amortization is the process of gradually paying off a loan through regular, scheduled payments. An amortization schedule shows the breakdown of each payment into principal and interest. Early in a loan, most of each EMI goes toward interest; as you repay, the interest portion shrinks and the principal portion grows. This happens because interest is charged on the outstanding balance, which decreases with each payment. The yearly amortization table in this calculator summarizes this schedule by year.
Always compare loans using the Annual Percentage Rate (APR), not the nominal rate, because APR includes processing fees, insurance premiums, and other charges that the stated rate omits. A loan advertised at 10.5% with a 1% processing fee has a true APR of roughly 11.5% or higher depending on how fees are amortized. In India, the equivalent is the Effective Annual Rate (EAR). RBI guidelines require lenders to disclose the Annualised Rate of Charge (ARC), which is the most comparable figure across lenders.
Yes. The EMI formula is universal regardless of loan type. The key differences between loan types are: home loans have the longest tenures (up to 30 years) and lowest rates; car loans have medium tenures (1 to 7 years) and moderate rates; personal loans have the shortest tenures (1 to 5 years) and highest rates since they are unsecured. Input the correct principal, rate, and tenure for each loan type and the calculator will work correctly for all of them.
Several strategies reduce total interest: (1) Make a larger down payment to reduce the principal. (2) Choose a shorter tenure, the monthly EMI is higher but total interest is much lower. (3) Make part prepayments annually using bonuses or savings. (4) Refinance to a lower rate if your credit score has improved. (5) Switch from a fixed to a floating rate (or vice versa) when market conditions are favorable. The amortization schedule in this calculator helps you see exactly how much each prepayment would save.