How is a home loan EMI calculated?

Indian banks calculate the EMI using the reducing-balance method with the formula EMI = P × r × (1+r)^n ÷ ((1+r)^n − 1), where P is the principal, r is the monthly interest rate (the annual rate divided by 12 and expressed as a fraction), and n is the number of monthly instalments. “Reducing balance” means interest each month is charged only on the principal still outstanding, not on the original loan amount, so as you repay principal the interest portion of each EMI shrinks. This tool applies exactly that formula and rounds the EMI to the nearest rupee, the way a bank statement shows it.

Why does a longer tenure cost more even though the EMI is lower?

A longer tenure spreads the same principal over more months, so each EMI is smaller — but the principal also reduces more slowly, which means interest keeps accruing on a higher balance for longer. The result is that the total interest paid over the life of the loan rises sharply with tenure. For example, a ₹60 lakh loan at 8.6% costs roughly ₹66 lakh in interest over 20 years but only about ₹48 lakh over 15 years. A lower EMI feels easier month to month, but it can quietly add lakhs to the lifetime cost, which is why it is worth comparing tenures before you choose.

Does this calculator account for floating interest rates?

It calculates the EMI for the single rate you enter, which is the standard way to estimate an instalment. Most Indian home loans are floating-rate and linked to the RBI repo rate, so the actual rate — and therefore the EMI or the tenure — can change over the life of the loan when the benchmark moves. The practical approach is to calculate at the rate currently quoted to you, and re-run the figures whenever your bank revises the rate. For a fixed-rate loan, the single-rate calculation holds for the whole tenure.

How much does prepayment save?

Prepayment — paying an extra amount against the principal beyond your regular EMI — saves interest because it removes future interest on that amount for the entire remaining tenure. The earlier in the loan you prepay, the more you save, since more months of interest are avoided. A prepayment in year two of a 20-year loan saves far more than the same amount paid in year fifteen. Most banks allow prepayment on floating-rate home loans without penalty. While this calculator shows the baseline EMI and total interest, the principle to remember is that early prepayments are disproportionately powerful.

What is the difference between the loan amount and the property value?

The property value is the total cost of the home; the loan amount is only the portion the bank lends, after your down payment. Indian lenders typically finance up to 75–90% of the property value depending on the loan size, so you contribute the rest as a down payment. Enter the loan amount — the sanctioned principal — into this calculator, not the property value. For a ₹75 lakh flat with a ₹15 lakh down payment, the loan amount is ₹60 lakh, and that is the figure the EMI is calculated on.

Are the amounts I enter sent to a server?

No. The entire calculation runs in JavaScript inside your own browser. Nothing you type — loan amount, rate, or tenure — is uploaded, logged, or stored anywhere. That makes the tool safe to use with real figures while you compare loan offers. Closing the tab clears everything; there is no account and no history kept on any server.

Finance

Home Loan EMI Calculator

Work out your home loan EMI, total interest, and full repayment breakdown at any rate and tenure — instantly, in your browser. Free, no signup, nothing uploaded.

By the Samastam teamLast updated 2026-06-18Editorial standards

Loan details

Loan amount (₹)

₹

Interest rate (% per year)

Use the rate your bank quotes. Most home loans are floating and revise with the RBI repo rate.

Tenure (years)

Tap a common term or type any number of years.

Breakdown

Monthly EMI: —
Principal: —
Total interest: —
Total payable: —

Enter a loan amount and tenure on the left. The EMI, total interest, and total payable update here as you type.

A home loan EMI calculator works out the fixed monthly instalment you will pay on a housing loan, using the reducing-balance method every Indian bank applies. Enter the loan amount, the interest rate, and the tenure, and it shows the EMI, the total interest over the life of the loan, and the total amount repaid — the three figures that actually decide whether a loan is affordable. Everything runs in your browser, so the numbers you type are never sent anywhere.

What this is and why it matters

A home loan is the largest single borrowing most Indian households ever take on, and the EMI is the number that governs the next fifteen to thirty years of monthly budgeting. An EMI — Equated Monthly Instalment — is the fixed amount you pay the bank every month until the loan is cleared. It is fixed in size, but not in composition: under the reducing-balance method that every Indian lender uses, interest each month is charged only on the principal still outstanding. In the early years most of each instalment is interest and only a little reduces the principal; as the balance falls, the split flips, and by the final instalment almost the entire payment is principal.

This matters because the headline interest rate hides the true cost. A loan at 8.5% does not mean you pay 8.5% of the loan once — you pay interest every month on a balance that takes years to come down. On a ₹50 lakh loan over 20 years, the total interest works out to around ₹54 lakh, more than the loan itself. Banks rarely lead with that figure; they lead with the comfortable-looking EMI. An EMI calculator exists to surface the total interest and the total amount repaid before you sign, so the decision is made on the full cost rather than the monthly one.

It also lets you test the levers. Drop the tenure and the EMI rises but the total interest falls; raise the rate and watch how sensitive the instalment is to the quarter-point differences banks negotiate over. Seeing those trade-offs in rupees, against your own loan figures, is the difference between guessing and deciding.

How to use this tool

Enter the loan amount. Type the principal you plan to borrow — the sanctioned loan amount, not the property value — into the amount field. The breakdown updates the moment you type; there is no calculate button to press and nothing is submitted anywhere. For a ₹60 lakh property with a 20% down payment, the loan amount is ₹48 lakh.

Set the interest rate. Type the annual rate your bank is offering, as a percentage — for example 8.5. Home loan rates in India are usually floating and revise with the RBI repo rate, so use the rate currently quoted to you; you can re-run the calculation whenever it changes. Even a quarter-point difference moves the total interest by lakhs over a long tenure, so it is worth comparing offers here.

Choose the tenure. Set the loan period in years — home loans commonly run 15, 20, or 30 years. A longer tenure lowers the monthly EMI but increases the total interest substantially, because the principal is repaid more slowly. Try a few tenures and watch both the EMI and the total interest change so you can find the balance between monthly affordability and lifetime cost that suits you.

Read the breakdown. The panel shows your monthly EMI, the total interest payable over the full tenure, and the total amount (principal plus interest) you will repay. The figures recalculate instantly as you adjust any input, so you can compare scenarios — a shorter tenure, a lower rate, a larger down payment — side by side before committing to a lender.

Examples and use cases

A Bengaluru couple buying their first flat

A working couple in Bengaluru buy a ₹75 lakh flat with a 20% down payment, taking a ₹60 lakh home loan at 8.6% over 20 years. Entering ₹60,00,000, 8.6%, and 20 years shows an EMI of about ₹52,491. Over 240 months they repay roughly ₹1.26 crore, of which around ₹66 lakh is interest — more than the down payment they made. Seeing that the interest alone exceeds ₹65 lakh is what prompts many buyers to consider a shorter tenure or periodic prepayments.

Comparing a 20-year and a 15-year tenure

For the same ₹60 lakh loan at 8.6%, switching the tenure from 20 years to 15 years raises the EMI from about ₹52,491 to about ₹59,800 — roughly ₹7,300 more a month. But the total interest drops from around ₹66 lakh to about ₹48 lakh, a saving of nearly ₹18 lakh. The calculator makes this trade-off concrete: a higher monthly outgo that many can absorb, against a lakhs-level saving over the life of the loan.

A Pune buyer weighing a quarter-point rate difference

A buyer in Pune is offered ₹50 lakh over 20 years at 8.5% by one bank and 8.75% by another. At 8.5% the EMI is about ₹43,391; at 8.75% it is about ₹44,186 — only ₹795 more a month, which looks minor. But over 240 months that quarter-point costs roughly ₹1.9 lakh in extra interest. Running both rates here turns an abstract “0.25%” into a rupee figure worth negotiating over.

Sizing a loan to a comfortable EMI

A salaried borrower in Hyderabad knows she can comfortably pay ₹40,000 a month and wants to work backwards to a loan amount. Trying ₹45 lakh at 9% over 20 years gives an EMI of about ₹40,489 — just above her limit — so she tests ₹44 lakh and lands at about ₹39,589, within budget. Using the calculator in reverse like this helps set a realistic property budget before house-hunting.

Frequently asked questions

How is a home loan EMI calculated?: Indian banks calculate the EMI using the reducing-balance method with the formula EMI = P × r × (1+r)^n ÷ ((1+r)^n − 1), where P is the principal, r is the monthly interest rate (the annual rate divided by 12 and expressed as a fraction), and n is the number of monthly instalments. “Reducing balance” means interest each month is charged only on the principal still outstanding, not on the original loan amount, so as you repay principal the interest portion of each EMI shrinks. This tool applies exactly that formula and rounds the EMI to the nearest rupee, the way a bank statement shows it.
Why does a longer tenure cost more even though the EMI is lower?: A longer tenure spreads the same principal over more months, so each EMI is smaller — but the principal also reduces more slowly, which means interest keeps accruing on a higher balance for longer. The result is that the total interest paid over the life of the loan rises sharply with tenure. For example, a ₹60 lakh loan at 8.6% costs roughly ₹66 lakh in interest over 20 years but only about ₹48 lakh over 15 years. A lower EMI feels easier month to month, but it can quietly add lakhs to the lifetime cost, which is why it is worth comparing tenures before you choose.
Does this calculator account for floating interest rates?: It calculates the EMI for the single rate you enter, which is the standard way to estimate an instalment. Most Indian home loans are floating-rate and linked to the RBI repo rate, so the actual rate — and therefore the EMI or the tenure — can change over the life of the loan when the benchmark moves. The practical approach is to calculate at the rate currently quoted to you, and re-run the figures whenever your bank revises the rate. For a fixed-rate loan, the single-rate calculation holds for the whole tenure.
How much does prepayment save?: Prepayment — paying an extra amount against the principal beyond your regular EMI — saves interest because it removes future interest on that amount for the entire remaining tenure. The earlier in the loan you prepay, the more you save, since more months of interest are avoided. A prepayment in year two of a 20-year loan saves far more than the same amount paid in year fifteen. Most banks allow prepayment on floating-rate home loans without penalty. While this calculator shows the baseline EMI and total interest, the principle to remember is that early prepayments are disproportionately powerful.
What is the difference between the loan amount and the property value?: The property value is the total cost of the home; the loan amount is only the portion the bank lends, after your down payment. Indian lenders typically finance up to 75–90% of the property value depending on the loan size, so you contribute the rest as a down payment. Enter the loan amount — the sanctioned principal — into this calculator, not the property value. For a ₹75 lakh flat with a ₹15 lakh down payment, the loan amount is ₹60 lakh, and that is the figure the EMI is calculated on.
Are the amounts I enter sent to a server?: No. The entire calculation runs in JavaScript inside your own browser. Nothing you type — loan amount, rate, or tenure — is uploaded, logged, or stored anywhere. That makes the tool safe to use with real figures while you compare loan offers. Closing the tab clears everything; there is no account and no history kept on any server.