An EMI (equated monthly instalment) calculator tells you how much you will pay every month for a loan, and how much of that is interest. It is the fastest way to compare loan offers and choose a tenure you can afford.
Key takeaways
- EMI depends on three inputs: loan amount, interest rate and tenure.
- A longer tenure lowers the EMI but increases total interest.
- Early EMIs are mostly interest; later EMIs are mostly principal.
- Always add processing fees and other charges when comparing offers.
The formula
EMI = P × r × (1 + r)^n ÷ [(1 + r)^n − 1]
- P = loan amount
- r = monthly interest rate (annual rate ÷ 12 ÷ 100)
- n = number of monthly instalments
Example: ₹10 lakh at 9% for 5 years → r = 0.0075, n = 60 → EMI ≈ ₹20,758; total interest ≈ ₹2,45,500. See the detailed walkthrough in EMI formula explained.
Using the calculator for decisions
| Question | What to change | What to watch |
|---|---|---|
| How much can I borrow? | Loan amount | EMI within 40–50% of take-home pay (all loans) |
| Which tenure? | Tenure | Total interest vs monthly comfort |
| Which lender? | Rate | Also compare fees and APR |
| Should I prepay? | Reduce principal | Interest saved vs prepayment charges |
Amortisation — why prepayment early helps
In the first year of a ₹10 lakh, 5-year loan at 9%, about ₹83,000 of the ₹2.49 lakh you pay is interest. In the final year, interest is only about ₹11,700. Prepaying early reduces the principal on which future interest is charged.
Limitations
- Calculators assume a constant rate — floating-rate loans can change.
- They do not include processing fees, insurance or taxes unless you add them.
- Lenders may calculate interest on a daily reducing balance; small differences are normal.
Try the EMI calculator.
Your action checklist
- Keep contact details and KYC updated with your bank.
- Add nominees to every account and deposit.
- Use online NEFT/RTGS/IMPS/UPI and verify the beneficiary name before paying.
- Never share OTP, PIN or CVV — banks do not ask for them.
- Review charges in your statement and switch accounts if fees are high.
FAQs
Is the calculator result exactly what the bank will charge?
It is a close estimate. The bank's loan agreement and repayment schedule are final.
What is a reducing-balance rate?
Interest is charged on the outstanding principal — standard for bank loans. A "flat rate" charges interest on the original amount and is much costlier than it looks.
