What is EMI and how is it calculated?
EMI stands for Equated Monthly Installment — a fixed monthly payment that combines principal and interest, used across India, Pakistan and Bangladesh for home loans, car loans and personal loans. Every EMI payment covers that month's interest first, with the rest reducing the outstanding principal, so the interest portion shrinks and the principal portion grows over the loan's tenure.
"EMI" and a standard loan calculator use the exact same reducing-balance formula — this page exists as a dedicated EMI-specific calculator because "EMI calculator" is the term used and searched in India, Pakistan and Bangladesh, while other regions typically search for "loan calculator" or "mortgage calculator". See our general Loan Calculator for the equal-principal repayment method as an alternative to EMI's equal-payment method.
How do I calculate my EMI?
To calculate EMI, apply the formula EMI = P x r x (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 installments. Example: a loan of Rs. 300,000 at 9% annual interest for 5 years (60 months) gives a monthly EMI of about Rs. 6,227.51.
Steps to calculate EMI
- Convert the annual interest rate to a monthly rate by dividing by 12 and by 100 (9% annual becomes 0.0075 monthly).
- Convert the loan tenure to months (5 years becomes 60 months).
- Apply the EMI formula: P x r x (1+r)^n divided by ((1+r)^n - 1).
- Multiply the EMI by the number of months to get the total amount repaid over the loan.
- Subtract the original principal from the total repaid to get the total interest paid.
EMI formula
EMI = P x r x (1+r)^n / ((1+r)^n - 1)
- P = principal loan amount
- r = monthly interest rate (annual interest rate / 12 / 100)
- n = loan tenure in months (years x 12)
Example EMI calculations
| Principal | Rate | Tenure | Monthly EMI | Total interest |
|---|
| Rs. 300,000 | 9% | 5 years | Rs. 6,227.51 | Rs. 73,650.39 |
| Rs. 500,000 | 10% | 10 years | Rs. 6,607.54 | Rs. 292,904.42 |
| Rs. 10,00,000 | 8.5% | 20 years | Rs. 8,678.23 | Rs. 10,82,775.76 |
| Rs. 20,00,000 | 7.5% | 15 years | Rs. 18,540.25 | Rs. 13,37,244.50 |
Frequently asked questions
Is EMI the same formula as a regular loan calculator?
Yes. EMI uses the standard reducing-balance (equal-payment) amortization formula used worldwide for mortgages and installment loans; the only difference is the terminology — "EMI" is the term used in India, Pakistan and Bangladesh, while "loan payment" or "mortgage payment" is used elsewhere for the exact same calculation.
Why does the interest portion of my EMI decrease over time?
Each EMI first pays the interest owed on the current outstanding principal, and only the remainder reduces the principal itself. As the outstanding principal shrinks month by month, the interest portion of each fixed EMI payment shrinks too, while the principal portion grows — this is normal for reducing-balance amortization.
Does a longer tenure always mean I pay less per month?
Yes, a longer tenure spreads the same principal over more months, lowering the fixed monthly EMI, but it increases the total interest paid over the life of the loan because interest accrues for a longer period — there is a trade-off between monthly affordability and total cost.
Can I use this EMI calculator for a car loan or personal loan, not just a home loan?
Yes, the EMI formula is identical regardless of loan purpose — home loan, car loan, personal loan or education loan all use the same reducing-balance calculation, so you only need the principal, interest rate and tenure to compute the EMI.
This calculator computes only the standard reducing-balance EMI and does not include processing fees, prepayment penalties, insurance premiums, GST on charges, or floating-rate changes that some Indian lenders apply. Check your loan's full cost with your bank or NBFC before borrowing.
Sources: Reserve Bank of India — Master Direction on Loans and Advances