How the emi calculator works
EMI (Equated Monthly Instalment) is the fixed amount you repay each month, combining both principal and interest. It's calculated as:
EMI = P × r × (1 + r)n / [(1 + r)n − 1]
Where P is the loan principal, r is the monthly interest rate (annual rate ÷ 12 ÷ 100), and n is the number of monthly instalments (loan tenure in years × 12).
Step-by-step guide
- Enter your total loan amount (principal).
- Set the annual interest rate offered by your lender.
- Choose the loan tenure in years.
- Read your monthly EMI, total interest payable, and total repayment amount.
How tenure affects your total cost
A longer tenure lowers your monthly EMI but increases the total interest paid over the life of the loan, because interest keeps accruing on the outstanding balance for longer. A shorter tenure raises the EMI but reduces total interest — worth weighing against your monthly cash flow.
| Tenure | Approx. EMI (₹25L @ 8.5%) | Approx. total interest |
|---|---|---|
| 10 years | ₹30,996 | ₹12,19,520 |
| 20 years | ₹21,696 | ₹27,07,140 |
| 30 years | ₹19,220 | ₹44,19,200 |
Frequently asked questions
For a standard fixed-rate reducing-balance loan, yes — the EMI amount stays constant, but the split between principal and interest within each EMI shifts over time (more interest early on, more principal later).
This calculator uses the reducing balance method, the standard for most home, car and personal loans, where interest is charged only on the outstanding principal. Flat-rate loans charge interest on the full original principal throughout, resulting in a higher effective rate.
No — this is a pure EMI calculation on principal and interest. Lenders may add processing fees, insurance premiums or other charges separately.
Choosing a shorter tenure, making a larger down payment, or making partial prepayments during the loan term all reduce total interest paid, though a shorter tenure raises the monthly EMI.