EMI Calculator for Home, Car and Personal Loans

About this EMI Calculator

This EMI calculator tells you the fixed monthly payment on a loan, the total interest you will pay over its life, and the total amount you will repay. You enter the loan amount, the annual interest rate and the tenure in months, and it applies the reducing-balance formula that most bank loans in India use.

It is for anyone about to take, or compare, a home loan, car loan, bike loan, education loan or personal loan. Run it before you talk to a lender, so you already know the range of EMIs that fits your monthly budget, and again afterwards to check the figure on the offer letter. A mismatch is worth a question to the lender.

Below the calculator you will find the formula, three worked examples, tables comparing tenures, and an explanation of why early EMIs are mostly interest. There is also a short section on prepayment and on the difference between flat and reducing rates, which is where many borrowers get caught out. None of this is financial advice. It is the arithmetic, laid out so you can ask better questions.

How to use the EMI Calculator, step by step

1. Enter the loan amount. Type the amount you will actually borrow in the Loan amount field. If you are buying a bike for 1,50,000 and paying 30,000 as down payment, the loan amount is 1,20,000.
2. Enter the annual interest rate. Put the yearly rate in Annual interest rate (%), for example 9 or 8.5. Use the rate quoted by the lender, not a flat rate converted by guess. The calculator divides it by 12 for the monthly rate.
3. Enter the tenure in months. Tenure is asked in months, not years. Multiply years by 12, so 5 years is 60 and 20 years is 240. A blank or zero tenure shows an EMI of zero.
4. Read the monthly payment. Monthly payment (EMI) is the fixed amount due each month. Compare it with your take-home income and your other commitments before going ahead. Lenders and many people set their own comfort limits, so decide yours.
5. Read the total interest. Total interest is the cost of borrowing: all the EMIs added up minus the loan amount. It is the number that makes different tenures and rates easy to compare, so look at it as well as the EMI.
6. Compare scenarios. Change the tenure and the rate a few times. Try a shorter tenure to see how much interest you save, or half a percentage point lower to see what a rate cut is worth. Add fees separately.

The formula behind the EMI Calculator

The EMI is the fixed amount that, paid every month for n months, exactly repays the loan with interest charged on the balance each month.

EMI = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1)
r = Annual rate ÷ 12 ÷ 100
If r = 0: EMI = P ÷ n
Total repayment = EMI × n
Total interest = EMI × n − P
Month-1 interest = P × r;  Month-1 principal = EMI − P × r

What each symbol means

EMI

Equated monthly instalment, the fixed payment each month

P

Principal, the amount borrowed

r

Monthly interest rate as a decimal (annual rate ÷ 12 ÷ 100)

n

Number of monthly instalments (the tenure in months)

Annual rate

The yearly interest rate as a percentage, as entered in the calculator

How the formula works

Each month the lender charges interest on the balance you still owe, at the monthly rate r. You pay a fixed EMI. The part of the EMI that is not needed for interest reduces the balance. Next month the balance is a little lower, so the interest is a little lower and more of the same EMI goes towards the balance. The formula finds the one fixed EMI that brings the balance to exactly zero after n payments.

This explains why early EMIs are mostly interest. For ₹5,00,000 at 9% (r = 0.0075), the first month's interest is 5,00,000 × 0.0075 = ₹3,750. The EMI is ₹10,379.18, so only 10,379.18 − 3,750 = ₹6,629.18 reduces the loan. By month 36 the balance is around ₹2,27,191, so interest is only ₹1,768.51 and ₹8,610.66 goes to principal. The total payment never changes, only the split.

There are a few edge cases. If the rate is zero, the formula would divide zero by zero, so the calculator uses the simple case: EMI = P ÷ n, and total interest is zero. If the tenure is zero or blank the calculator shows zero, since there is nothing to repay over zero months. The calculator also does not round the EMI to whole rupees, while a lender may round it, which can leave small differences in the last instalment.

The formula assumes a fixed rate, equal monthly payments, and the first payment one month after disbursal. Real loans can differ. A floating rate changes with the lender's benchmark, and the lender may change the EMI or the tenure. Processing fees, insurance and taxes are not part of this formula. Pre-EMI interest during construction or the first partial month can also add to the cost. Your loan statement and sanction letter are the final word.

Worked examples

A bike loan for two years

You buy a bike for ₹1,50,000, pay ₹30,000 as down payment and borrow ₹1,20,000 at 11% a year for 24 months.

1. r = 11 ÷ 12 ÷ 100 = 0.0091667
2. (1 + r)²⁴ = 1.0091667²⁴ ≈ 1.2448
3. EMI = 1,20,000 × 0.0091667 × 1.2448 ÷ (1.2448 − 1) = 5,592.94
4. Total repayment = 5,592.94 × 24 = 1,34,230.57
5. Total interest = 1,34,230.57 − 1,20,000 = 14,230.57

Result: EMI ≈ ₹5,592.94 a month, total interest ≈ ₹14,230.57, total repayment ≈ ₹1,34,230.57.

A home loan: the first month on a 20-year loan

A home loan of ₹30,00,000 at 8.5% a year for 20 years (240 months). How is the first EMI split?

1. r = 8.5 ÷ 12 ÷ 100 = 0.0070833, n = 240
2. EMI = 26,034.70 (from the formula)
3. Month-1 interest = 30,00,000 × 0.0070833 = 21,250.00
4. Month-1 principal = 26,034.70 − 21,250.00 = 4,784.70
5. Total repayment = 26,034.70 × 240 = 62,48,327.28, so total interest = 32,48,327.28

Result: EMI ≈ ₹26,034.70, of which ₹21,250 (about 82%) is interest in month 1. Total interest ≈ ₹32,48,327, more than the loan itself.

Flat rate versus reducing rate

A dealer quotes "8% flat" on ₹1,00,000 for 3 years (36 months). How does that compare with an 8% reducing-balance loan?

1. Flat interest = 1,00,000 × 8% × 3 = 24,000 on the full amount, all three years
2. Total = 1,24,000, so EMI = 1,24,000 ÷ 36 = 3,444.44
3. At 8% reducing: r = 0.0066667, EMI = 3,133.64, total = 1,12,810.92, interest = 12,810.92
4. Searching for the reducing rate that gives an EMI of 3,444.44 over 36 months gives about 14.55% a year

Result: 8% flat costs ₹24,000 in interest, about double the ₹12,810.92 of an 8% reducing loan, and matches roughly 14.55% reducing.

Reference tables

EMI at different tenures: ₹5,00,000 at 9% a year

The same loan, repaid over different periods. A longer tenure lowers the EMI but raises the interest by a large margin. All values come from the formula with r = 0.0075.

How each EMI splits into interest and principal: ₹5,00,000, 9%, 60 months

Every EMI is ₹10,379.18, but the split changes. Interest is charged on the balance at the start of each month. The balance shown is after that month's payment.

Common mistakes and tips

Looking at the EMI alone

A low EMI can come from a very long tenure, which can mean much more interest. On the table above, 10 years has an EMI of 6,333.79 but costs 2,60,054.64 in interest, over twice the 5-year interest. Always compare total interest too.

Entering years as months

The Tenure field is in months. Typing 5 gives a 5-month loan with a huge EMI, and typing 20 for a home loan gives a 20-month loan. Convert by multiplying years by 12 before you enter the figure.

Mixing up flat and reducing rates

A flat rate looks lower, but interest is charged on the whole amount for the whole period. As the third example shows, 8% flat is worth about 14.55% on a reducing balance. Ask which type is quoted and compare like with like.

Leaving out fees and insurance

Processing fees, documentation charges, insurance and taxes are not included here. Add what the lender quotes, and work out the full cost before you pick between two offers that look close in EMI.

Assuming a floating rate stays fixed

On a floating-rate loan, the lender can change the rate, and the EMI or tenure moves with it. Test your budget at a rate somewhat higher than today to see whether you could still manage.

Borrowing the most you are offered

An approved amount is a limit set by the lender, not a recommendation. Work backwards from an EMI you can pay comfortably, along with your rent, bills and savings, and borrow only as much as that supports.

Where people use this calculator

Planning a home purchase

Try several loan amounts and tenures to see which EMI fits your income. For a 20-year loan, the early EMIs are mostly interest, so check the total cost, not only the monthly figure.

Choosing between car or bike loan offers

Two dealers may quote different rates, tenures and fees. Enter each offer and compare total repayment. A slightly higher EMI on a shorter loan can cost far less in interest overall.

Checking a personal loan offer

Personal loans are usually short and carry higher rates. See the interest on 50,000 over 12 versus 24 months, and decide whether the extra months are worth the extra cost.

Education loan budgeting

Before taking a student loan, estimate the EMI that will follow after the course. Remember that terms for moratorium and interest during study differ by lender and are not covered by this formula.

Testing a prepayment idea

To see the effect of paying a lump sum, run the calculator with a smaller principal and a shorter tenure. It gives a rough picture. Your lender's statement will have the exact figures and any prepayment charges.

Frequently asked questions

Related calculators

Results are estimates for general information. See our disclaimer and about page for how we build and check these tools.

Last reviewed: October 2026. Spotted a mistake? Tell us on the contact page.