EMI Calculator at a glance
- What it does
- Calculate your equated monthly instalment for a home, car or personal loan, see the total interest paid, and understand how amortisation
- Where it runs
- Entirely in your browser — no data is uploaded
- Works offline
- Yes, once the page has loaded
- Cost
- Free, with no account and no usage limit
- Category
- Financial Calculators
How to use the EMI calculator
- Enter the loan amount - the principal, after any deposit.
- Enter the annual interest rate your lender quoted.
- Set the tenure in years.
- Read the monthly EMI, the total interest, and the total amount repayable.
The formula
EMI = P × r × (1 + r)ⁿ / ((1 + r)ⁿ − 1)
P = principal
r = monthly interest rate = annual rate ÷ 12 ÷ 100
n = tenure in monthsWorked example. A ₹50,00,000 home loan at 8.5% over 20 years. The monthly rate is 0.0070833 and n is 240, giving an EMI of about ₹43,391. Over the full term you repay roughly ₹1.04 crore - meaning the interest alone is about ₹54 lakh, slightly more than the amount borrowed.
That last point is worth sitting with. On a long loan at a typical rate, interest often exceeds principal.
How the split changes over time
The EMI is constant, but what it consists of is not. Interest each month is charged on the outstanding balance, which is highest at the start.
On the example above, the first payment is roughly ₹35,400 interest and ₹8,000 principal. Halfway through the term, the split is closer to even. In the final year, almost all of it is principal.
Two consequences follow. First, selling or refinancing in the early years means you have repaid far less of the loan than the payments suggest. Second, and more usefully, an extra payment made early removes far more total interest than the same payment made late.
Prepayment: the highest-return decision available
Paying extra reduces the outstanding balance immediately, and every future interest charge is calculated on that smaller balance. The saving is disproportionate to the amount.
On the ₹50 lakh example, paying one extra EMI a year - about ₹43,000 - typically shortens a 20-year loan by around four years and saves several lakh in interest. Increasing the EMI by 5% each year as your income rises has a comparable effect.
Before doing it, check three things. Whether your lender charges a prepayment penalty - regulators in many countries prohibit this on floating-rate loans to individuals, but fixed-rate loans often carry one. Whether you would keep the reduced tenure or the reduced EMI: keeping the tenure short saves far more interest. And whether the money is better used elsewhere - clearing a credit card at 36% before prepaying a home loan at 8.5% is not a close call.
The tenure trade-off
| Tenure | EMI on ₹50 lakh at 8.5% | Total interest |
|---|---|---|
| 10 years | ~₹61,993 | ~₹24.4 lakh |
| 15 years | ~₹49,237 | ~₹38.6 lakh |
| 20 years | ~₹43,391 | ~₹54.1 lakh |
| 30 years | ~₹38,446 | ~₹88.4 lakh |
Extending from 20 to 30 years cuts the monthly payment by about 11% and increases total interest by roughly ₹34 lakh. Long tenures make a loan affordable month to month at a very high lifetime cost - which is a legitimate trade if the alternative is not being able to buy at all, but it should be a decision made with the total in front of you.
What the EMI does not include
The EMI covers principal and interest. Your actual monthly outlay is usually higher:
- Processing fees - typically 0.5-1% of the loan, charged upfront.
- Property insurance, and loan protection insurance where required.
- Property tax and maintenance on a home loan.
- Stamp duty and registration, which are substantial and often overlooked in affordability calculations.
Note also that most home loans in India and many elsewhere are floating rate: the rate can change, and lenders typically extend the tenure rather than raise the EMI. A rate rise you did not notice may have added years to your loan.
This is a calculator, not advice. It applies a standard formula to the figures you enter and assumes a constant rate of return, no taxes and no fees unless stated. Real markets do not behave that way. Nothing here is a recommendation to buy, sell or hold any investment — see our full disclaimer, and speak to a qualified adviser regulated in your jurisdiction before making a financial decision.
Frequently asked questions
Usually within a rupee or two. Lenders differ in rounding, in day-count conventions, and in whether fees are added to the principal. Treat this as an accurate estimate and the lender's schedule as authoritative.
The shortest you can comfortably afford. Extending the term lowers the monthly payment and raises the lifetime cost sharply - on a 20-year loan, going to 30 years can add more than half the loan amount in extra interest.
Almost always, especially early in the term, and provided there is no prepayment penalty. Check first whether you have higher-interest debt elsewhere, and keep an emergency fund rather than putting every spare rupee into the loan.
Because interest is charged on the outstanding balance, which is at its largest at the start. As the balance falls, the interest portion falls and the principal portion rises.
A fixed rate stays the same for the term or an agreed period. A floating rate moves with a benchmark, so your EMI or tenure changes when rates move. Floating is usually cheaper initially and carries the risk of increases.
Nothing you enter here leaves your browser
EMI Calculator does its work in JavaScript running on your own device. The page loads once, and after that there is no upload step and no server involved — which matters here because your income, loan and savings figures are nobody else’s business.
You can verify this rather than taking our word for it: load the page, disconnect from the internet, and the tool keeps working. Our privacy policy sets out what is and is not collected, and this guide explains why the distinction matters.