Finance & Money
Free EMI Calculator
Work out your equated monthly instalment, and how much of the total is interest.
Free to useNo sign-up requiredNo watermarkRuns in your browser
Last reviewed: 30 September 2026 by Vishal Senthilkumar
EMI stands for equated monthly instalment: a fixed monthly payment that covers both interest and principal, sized so the loan is fully repaid by the end of the tenure. This free EMI calculator gives you that monthly figure, plus the total interest and the total amount payable.
Enter the principal, the annual interest rate and the tenure. The split between principal and interest is shown as well, because on a long tenure the interest can approach or exceed the amount originally borrowed.
How this tool works
Enter the principal
The loan amount sanctioned - the sum you actually receive, after any down payment.
Enter the annual interest rate
The rate quoted by the lender. For a floating-rate loan, use the current rate and remember the EMI can change later.
Set the tenure
In years or months. Longer tenures reduce the EMI and increase total interest, so it is worth trying several.
Review the interest share
The breakdown shows how much of your total outlay is interest rather than repayment of the principal.
How it works
The EMI formula is the same amortising calculation used for any equal-instalment loan. The monthly rate is the annual rate divided by twelve, and the instalment is sized so that the outstanding balance reaches exactly zero on the final payment.
Every EMI is identical in size but not in composition. In the first months most of it is interest, because interest is charged on a large outstanding balance. As the balance falls, the interest portion shrinks and the principal portion grows.
This is why prepaying early saves far more than prepaying late. A lump sum in year two removes principal that would otherwise have generated interest for the remaining tenure; the same sum in the final year saves almost nothing.
Reducing-balance interest, which is what this calculates, is the standard method for consumer loans. Flat-rate interest - charged on the original principal throughout - works out considerably more expensive for the same quoted rate.
What EMI actually stands for
An equated monthly instalment is a single fixed payment made every month for the whole tenure. "Equated" means the payments are equal in amount, not that principal and interest are split equally within them.
The lender calculates the instalment so that the loan closes exactly at the end of the tenure. Miss the fact that composition shifts over time and the loan looks like a flat monthly cost, when in reality you are paying down almost no principal in the early years of a long tenure.
Reducing balance versus flat rate
These two methods can be quoted at the same percentage and cost very different amounts. It is worth knowing which one you are being offered.
- Reducing balance charges interest only on what you still owe, so the interest charge falls every month. This is what the calculator above uses, and what most home, car and personal loans use.
- Flat rate charges interest on the full original principal for the entire tenure, regardless of how much you have repaid. A "10% flat" loan costs roughly the same as an 18% to 19% reducing-balance loan.
- If a lender quotes an unusually low rate, ask explicitly which method applies before comparing it with anything else.
Ways to reduce what you pay
- Choose the shortest tenure whose EMI you can comfortably afford, since total interest scales with time.
- Make part-prepayments as early in the tenure as possible, where they remove the most future interest.
- Increase your EMI when your income rises, if your lender allows it - a modest increase can cut years off the loan.
- Ask whether prepayment carries a penalty before committing to a long tenure.
- Compare offers on total amount payable, not on the EMI, because a lower EMI often just means a longer loan.
Formula
EMI
EMI = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1)
P is the principal, r the monthly interest rate, n the number of months.
Monthly rate
r = annual rate ÷ 12 ÷ 100
Total payable
total = EMI × n
Total interest
interest = total payable − principal
Worked examples
500,000 at 9% for 5 years
The EMI is about 10,379. Total payable is roughly 622,750, of which about 122,750 is interest.
The same loan stretched to 10 years
The EMI drops to about 6,335, but total interest more than doubles to roughly 260,200. Half the borrowed amount again, purely in interest.
A long home loan
2,000,000 at 8.5% over 20 years gives an EMI near 17,356 and total interest of about 2,165,400 - more than the original loan.
Prepaying early
On a 20-year loan, a lump sum in year three removes principal that would otherwise accrue interest for seventeen more years. The same amount in year eighteen saves very little.
Frequently asked questions
Is this EMI calculator free?
Yes, free to use with no sign-up. All calculations run in your browser and nothing you type is sent anywhere.
What does EMI mean?
Equated monthly instalment - a fixed monthly payment covering both interest and principal, calculated so the loan is fully cleared by the end of the tenure.
How is EMI calculated?
With the reducing-balance amortisation formula. The monthly rate is the annual rate divided by twelve, and the instalment is sized so the balance reaches zero on the last payment.
Why is so much of my early EMI interest?
Because interest is charged on the outstanding balance, which is at its largest at the start. As you repay, the interest share of each instalment falls and the principal share rises.
Does a lower EMI mean a cheaper loan?
Not usually. A lower EMI most often means a longer tenure, which increases the total interest. Compare the total amount payable instead.
What is the difference between EMI and a loan payment?
None in substance. EMI is the common term in South Asia and the Middle East for what is elsewhere called a monthly loan payment, and the underlying maths is identical.