How to use the EMI Calculator
- Enter the loan amount you plan to borrow and pick your currency.
- Type the yearly interest rate quoted by the lender and the tenure in years or months.
- Read your monthly EMI, total interest and total payment. They update as you type.
- Scroll to the amortization schedule, switch between monthly and yearly views, and click Download CSV to keep a copy.
Features
- Standard reducing-balance EMI formula used by banks
- Tenure in years or months, from 1 month to 50 years
- Principal-versus-interest donut and yearly bar chart
- Monthly and yearly amortization schedule with dates
- One-click CSV download for Excel or Google Sheets
- Remembers your currency across all finance calculators
What an EMI is
An equated monthly installment (EMI) is the fixed amount you pay a lender every month until a loan is fully repaid. Each EMI has two parts: interest on the balance you still owe, and a slice of principal that reduces that balance. The total stays the same every month, but the mix changes. Early EMIs are mostly interest; by the final year almost all of each payment goes to principal.
The EMI formula
Banks and finance companies use the reducing-balance formula:
EMI = P × r × (1 + r)n ÷ ((1 + r)n − 1)
- P is the loan amount (principal).
- r is the monthly interest rate: the yearly rate divided by 12 and by 100. A 10% loan has r = 0.008333.
- n is the number of monthly installments, so 5 years is 60.
Each month, interest is charged on the outstanding balance (balance × r) and the rest of the EMI reduces the principal. If the rate is 0%, the EMI is simply P ÷ n.
Worked example
Borrow 100,000 at 10% a year for 12 months. The monthly rate is 0.10 ÷ 12 = 0.0083333, so the EMI is 100,000 × 0.0083333 × 1.008333312 ÷ (1.008333312 − 1) = 8,791.59. Over the year you pay 105,499.06, of which 5,499.06 is interest. In the first month interest is 833.33 and principal 7,958.26; by the twelfth month interest has fallen to about 72.66.
How tenure changes the cost
A longer tenure lowers the EMI but raises the total interest, because the balance stays high for longer. Here is a loan of 2,500,000 at 8.5% a year:
| Tenure | EMI | Total interest |
|---|---|---|
| 15 years | 24,618.49 | 1,931,328 |
| 20 years | 21,695.58 | 2,706,939 |
Stretching the loan by five years cuts the EMI by about 2,900 a month but adds roughly 775,000 in interest. If you can afford the higher EMI, the shorter tenure saves a lot of money.
Reading the amortization schedule
The schedule lists every installment with its interest, principal and remaining balance. The yearly view shows how much principal you clear each year and what share of the loan is repaid, which is useful when planning a part-prepayment or checking how much you would still owe if you sold a car or house early. The CSV download opens in Excel, Google Sheets or Numbers.
Tips before you borrow
- Check the rate type. A flat rate charges interest on the original amount for the whole term and costs far more than the same reducing-balance rate. Ask for the reducing-balance rate or APR.
- Add the fees. Processing fees, insurance and taxes are not part of the EMI formula but raise the true cost of the loan.
- Floating rates change. If your rate is linked to a benchmark, the EMI or tenure moves when the rate does. Recalculate at a higher rate to test your budget.
- Prepay early. Extra payments in the first years save the most interest, because that is when the balance is highest.
For home loans with property tax and insurance, try the Mortgage Calculator. To see how quickly card debt clears, use the Credit Card Payoff Calculator.
These figures are estimates for information only and are not financial advice; your lender’s schedule may differ slightly because of rounding, fees and payment dates.
Frequently asked questions
What is the formula for EMI?
EMI = P × r × (1 + r)^n ÷ ((1 + r)^n − 1), where P is the loan amount, r the monthly rate (yearly rate ÷ 12 ÷ 100) and n the number of months. This is the reducing-balance method banks use.
Why does most of my early EMI go to interest?
Interest is charged on the outstanding balance, which is largest at the start. As the balance falls, the interest part shrinks and more of each EMI repays principal.
Should I choose a longer or shorter tenure?
A shorter tenure means a higher EMI but much less total interest. A longer tenure eases the monthly budget but costs more overall, so pick the shortest tenure whose EMI you can comfortably afford.
Does the EMI include processing fees or insurance?
No. The EMI covers principal and interest only. Fees, insurance premiums and taxes are extra, so add them when comparing loan offers.
Can I download the amortization schedule?
Yes. Choose the monthly or yearly view and click Download CSV. The file opens in Excel, Google Sheets or Numbers and labels amounts with the currency you selected.