What is EMI? Complete Guide to Equated Monthly Installments
Published on May 4, 2026
EMI, or Equated Monthly Installment, is a fixed payment amount made by a borrower to a lender at a specified date each calendar month. EMIs are used to pay off both interest and principal each month, so that over a specified number of years, the loan is paid off in full.
How is EMI Calculated?
EMI is calculated using the following formula:
EMI = P × r × (1+r)^n / ((1+r)^n - 1)
Where:
P = Principal amount
r = Monthly interest rate
n = Number of monthly installments
EMI Formula Components
| Symbol | Meaning | Example |
|---|---|---|
| P | Principal loan amount | Rs. 5,00,000 borrowed from the bank |
| r | Monthly interest rate | 12% per year becomes 1% per month |
| n | Total number of monthly payments | 5 years means 60 installments |
| EMI | Fixed monthly repayment amount | Same scheduled payment every month |
Factors Affecting EMI Amount
- Loan Amount: Higher principal leads to higher EMI
- Interest Rate: Higher rates increase EMI significantly
- Loan Tenure: Longer tenure reduces monthly EMI but increases total interest
- Credit Score: Better scores get lower interest rates
Advantages of EMI
- Fixed monthly payments make budgeting easier
- Helps in planning long-term financial goals
- Tax benefits on home loan EMIs
- Builds credit history with regular payments
Disadvantages of EMI
- Total interest paid can be high for long tenures
- Early prepayment penalties in some cases
- Lock-in periods restrict flexibility
Use Our EMI Calculator
Calculate your EMI instantly with our free calculator: