Plan any repayment with this free Loan & EMI Calculator
Borrowing money is easy; understanding what it really costs is the hard part. This Loan & EMI Calculator turns three simple numbers — the amount you borrow, the yearly interest rate and how long you take to repay — into the one figure that actually matters month to month: your fixed monthly payment, known as the EMI. Alongside it you instantly see the total interest the loan will cost you and the total amount you'll hand back over the full term, so there are no surprises buried in the fine print of a loan agreement.
It works for any kind of loan — a home loan, a car loan, a personal loan, a student loan or a small business loan — because the underlying maths is the same whatever the bank calls the product. It's built for anyone weighing up an offer: a first-time buyer checking whether a mortgage fits their budget, a shopper comparing two car finance deals, or someone deciding whether a shorter term is worth the higher monthly payment. The coloured bar under the result splits your repayment into principal and interest at a glance, which is often the most eye-opening part — it shows exactly how much of your money goes to the lender rather than toward the thing you bought.
How to use it
- Type in the loan amount — the sum you actually want to borrow, not the price of the item before any down payment.
- Enter the annual interest rate as a percentage. Use the rate the lender quotes you per year, not a monthly figure.
- Set the tenure, then pick Years or Months from the dropdown to match how your loan is described.
- Read your Monthly EMI, total interest and total payment — they recalculate the instant you change any field, so you can experiment freely.
How the EMI formula works
The calculator uses the standard amortisation formula: EMI = P × r × (1+r)n ÷ ((1+r)n − 1). Here P is the principal (your loan amount), r is the monthly interest rate (the annual rate divided by 12 and then by 100), and n is the total number of monthly instalments. If you enter the tenure in years, it is multiplied by twelve to get n. The result is a level payment: the same amount every month from the first instalment to the last. In the early months most of that payment is interest and only a little reduces the balance; as the principal shrinks, the interest portion falls and more of each payment chips away at what you owe. If you set the interest rate to zero, the tool simply divides the loan evenly across the months, which is handy for interest-free instalment plans.
Why total interest matters more than the monthly figure
A low EMI feels comfortable, but it usually hides a long term — and a long term means more interest. Stretching a loan from five years to ten can roughly halve the monthly payment while nearly doubling the interest you pay overall. This is why the calculator shows both numbers together. Use it to test the trade-off: nudge the tenure down and watch the EMI rise but the total interest drop. Many borrowers find a middle ground where the monthly payment is still affordable but they aren't paying a fortune in interest over the life of the loan. Even a small difference in the interest rate has an outsized effect on a large, long loan, so it's always worth comparing a couple of quotes before signing.
Reading the principal-versus-interest split
The bar below your result is divided into two colours. The first shows the share of your total repayment that is principal — the money you originally borrowed — and the second shows the share that is pure interest, the cost of borrowing. On a short, low-rate loan the principal dominates and interest is a thin slice. On a long, high-rate loan the interest band can grow surprisingly wide, sometimes approaching or exceeding the amount borrowed. Watching this split shift as you change the inputs is the quickest way to build an instinct for what makes a loan expensive.
Accuracy and privacy
Every calculation runs entirely inside your browser — nothing you type is sent to a server, stored or shared, so you can model real figures without worrying about your data. Treat the output as a close estimate rather than a binding quote. Real loans often add costs the formula can't know about: processing or origination fees, insurance, taxes, or a rate that changes over time on a variable-rate loan. Lenders may also round payments or apply interest on a slightly different day-count basis. For planning and comparing offers this calculator is more than accurate enough; for the exact figure you'll pay, always check the schedule your lender provides before you commit.
Go deeper: read our full guide — How Loan EMI Is Actually Calculated.
Disclaimer: Estimates are for planning and education only, not financial advice. Lenders add processing fees, insurance and their own rounding rules — confirm the final schedule with your bank before signing.