What is an EMI?
An Equated Monthly Instalment (EMI) is the fixed amount you pay your lender every month until a loan is fully repaid. Each EMI has two parts: interest on the outstanding balance and principal that reduces the balance. The EMI stays the same, but the split between the two changes every month.
How to use the EMI calculator
- Loan amount: the amount you borrow (excluding your down payment).
- Interest rate: the annual rate quoted by the lender.
- Loan tenure: the repayment period in years.
It works for any loan with a fixed monthly instalment: home loans, car loans, two-wheeler loans, personal loans and education loans.
EMI formula
- P = loan amount (principal)
- r = monthly interest rate (annual rate ÷ 12 ÷ 100)
- n = number of monthly instalments (years × 12)
Worked example
For a home loan of ₹25,00,000 at 8.5% a year for 20 years, the monthly rate is about 0.708% and there are 240 instalments. The EMI works out to about ₹21,696. Over 20 years you pay about ₹52.07 lakh, of which ₹27.07 lakh is interest. In the first year alone, about ₹2.11 lakh of your payments go to interest and only about ₹50,000 to principal.
Typical EMIs for common loans
| Loan | Amount | Rate | Tenure | EMI | Total interest |
|---|---|---|---|---|---|
| Home loan | ₹25,00,000 | 8.5% | 20 years | ₹21,696 | ₹27,06,939 |
| Car loan | ₹8,00,000 | 9% | 5 years | ₹16,607 | ₹1,96,401 |
| Personal loan | ₹5,00,000 | 11% | 3 years | ₹16,369 | ₹89,297 |
Actual rates depend on your lender, credit score and loan type.
How tenure and rate change your cost
A ₹25 lakh home loan at 8.5%:
| Tenure | EMI | Total interest |
|---|---|---|
| 15 years | ₹24,618 | ₹19,31,328 |
| 20 years | ₹21,696 | ₹27,06,939 |
| 25 years | ₹20,131 | ₹35,39,203 |
Stretching the loan from 15 to 25 years lowers the EMI by about ₹4,500 but adds more than ₹16 lakh in interest. A rate just 0.5% higher (9% instead of 8.5% over 20 years) adds about ₹1.9 lakh.
Ways to reduce your loan cost
- Make part-prepayments, especially in the early years when the interest share is highest.
- Choose the shortest tenure whose EMI you can comfortably afford.
- Keep a good credit score (750 or above) to qualify for lower rates.
- Review your rate. If other lenders offer a much lower rate, ask your bank to match it or consider a balance transfer.
- Raise your EMI as your income grows to finish the loan sooner.
Many lenders suggest keeping all your EMIs under about 40–50% of your monthly take-home pay; the salary calculator shows yours. Money saved on interest can go into a SIP instead. For a home loan, the interest may also cut your tax in the old regime: compare with the income tax calculator.
Frequently asked questions
How is EMI calculated?
EMI is calculated with the formula EMI = P × r × (1 + r)^n / ((1 + r)^n − 1), where P is the loan amount, r is the monthly interest rate (annual rate ÷ 12 ÷ 100) and n is the number of monthly instalments.
Why is most of my early EMI going towards interest?
Interest is charged on the outstanding balance, which is highest at the start. So early EMIs are mostly interest, and the principal share grows each month as the balance falls. The amortisation schedule on this page shows the split year by year.
Is a longer loan tenure better?
A longer tenure lowers the EMI but increases the total interest you pay. For example, a ₹25 lakh loan at 8.5% costs about ₹19.3 lakh in interest over 15 years but about ₹35.4 lakh over 25 years.
Can I prepay my loan?
Yes. Under RBI rules, banks cannot charge prepayment or foreclosure penalties on floating-rate loans taken by individuals for non-business purposes. Prepaying early in the tenure saves the most interest.
Does this EMI calculator include processing fees and insurance?
No. It shows the EMI and interest on the loan amount only. Processing fees, insurance premiums and other charges are extra, so check the total cost with your lender.
Sources
Last updated 19 September 2026. Results are estimates for planning only and are not investment, tax or legal advice. See our disclaimer.