The EMI calculator below works for any reducing-balance loan in India: home, personal, car, education, gold, or business. Type in your loan amount, the rate the bank quoted you, and how many years you want to stretch the EMI over. You’ll see the monthly EMI plus a clean split between how much actually pays down principal versus how much is interest.
Banks rarely show that split upfront, and honestly it’s the most useful number you can have before signing anything.
How EMI is calculated
Every Indian bank uses the same formula. Whether it’s SBI, HDFC, ICICI, Bajaj Finserv or your local cooperative, internally they all run this:
EMI = P × r × (1 + r)ⁿ / [(1 + r)ⁿ − 1]
Three inputs:
- P is the loan amount
- r is the monthly interest rate (annual rate divided by 12, then divided by 100)
- n is the tenure in months (years × 12)
This is called the reducing-balance method. As you pay down principal each month, the interest portion of the next EMI shrinks. That’s why your first EMI is mostly interest and your last EMI is mostly principal. The EMI itself stays the same throughout, but the split keeps shifting.
A few lenders still quote “flat rate” loans, mostly for personal and gold loans. Don’t take those. Flat rate charges interest on the full original amount for the entire tenure, so the effective rate is roughly double the quoted rate. If somebody quotes flat, ask for the reducing-balance equivalent before you compare anything.
Worked example: ₹25 lakh home loan at 8.5% for 20 years
Say you walk into an SBI branch and they sanction ₹25,00,000 at 8.5% for 20 years. That’s a fairly typical home loan in 2026.
The math:
- P = 25,00,000
- r = 8.5 ÷ 12 ÷ 100 = 0.007083
- n = 20 × 12 = 240
Run that through the formula and the bank’s system spits out:
| Metric | Value |
|---|---|
| Monthly EMI | ₹21,696 |
| Total interest over 20 years | ₹27,07,049 |
| Total amount you’ll pay | ₹52,07,049 |
Read that table again. You’re paying ₹27 lakh in interest on a ₹25 lakh loan. Your interest is bigger than your principal. That’s what 20-year tenure does, and it’s the single most overlooked fact about Indian home loans. Every bank pushes you toward 25 or 30 years because longer tenure means more interest income for them.
How a small rate change hits the total
A 1% swing in the interest rate is not a small thing. On the same ₹25 lakh, 20-year loan:
| Rate | Monthly EMI | Total interest |
|---|---|---|
| 7.50% | ₹20,135 | ₹23,32,478 |
| 8.00% | ₹20,911 | ₹25,18,649 |
| 8.50% | ₹21,696 | ₹27,07,049 |
| 9.00% | ₹22,493 | ₹28,98,360 |
| 9.50% | ₹23,300 | ₹30,92,067 |
If you can negotiate from 9.5% down to 8.5%, you save ₹3.85 lakh over the loan. That’s a year’s salary for a lot of borrowers. Always get quotes from at least three lenders. SBI, HDFC and ICICI publish their card rates online; smaller banks like Federal, IDBI and Karur Vysya often beat them by 0.25%.
How tenure changes everything
Stretching the tenure makes the EMI smaller, which is the number every relationship manager waves at you. But longer tenure also means much more total interest. Same loan, different tenures:
| Tenure | Monthly EMI | Total interest |
|---|---|---|
| 10 years | ₹30,997 | ₹12,19,646 |
| 15 years | ₹24,617 | ₹19,31,019 |
| 20 years | ₹21,696 | ₹27,07,049 |
| 25 years | ₹20,123 | ₹35,36,840 |
| 30 years | ₹19,219 | ₹44,18,805 |
A 30-year tenure looks attractive at ₹19,219 a month, but you pay ₹19 lakh more in interest than a 20-year. My honest advice: take the shortest tenure your salary genuinely supports, then use part-prepayments (one or two extra EMIs a year) to shorten further. Floating-rate home loans have no prepayment penalty in India, so that’s free money on the table.
Frequently asked questions
Can I prepay my home loan to reduce interest?
Yes, and you should. RBI rules say floating-rate home loans can’t have prepayment penalties. One extra EMI per year on a 20-year loan typically shaves 4 to 5 years off the tenure. For fixed-rate loans and non-housing loans (personal, business, gold), banks may charge 1 to 4 percent on the prepaid amount, so check your sanction letter first.
Will my EMI change when RBI changes the repo rate?
Depends on what your bank does. Most floating-rate home loans keep the EMI fixed and instead extend or shorten the tenure when the repo rate moves. A few banks revise the EMI itself. Check your loan agreement and your six-monthly statement. This is the boring stuff that actually matters.
Does this calculator include processing fees and GST?
No. It gives you the pure EMI based on principal, rate and tenure. Processing fees (typically 0.5 to 1 percent of the loan amount), 18 percent GST on those fees, stamp duty and insurance are charged separately. They don’t affect the EMI itself but they’re real money out of your pocket on day one. Always ask the bank for the all-in cost, not just the EMI.
What’s the catch with flat rate loans?
Flat rate charges interest on the full original amount for the entire tenure. So a “10 percent flat” personal loan is roughly equivalent to 18 to 19 percent reducing-balance. Lenders use this to look cheaper than they are. If a bank quotes flat, ask for the reducing-balance equivalent before signing.
Can I use this for a personal, car or education loan?
Yes. Same formula applies to all reducing-balance loans. Plug in the loan amount, the bank’s annual rate and the tenure. Rough current ranges in 2026:
- Personal loans: 10.5 to 24 percent, 1 to 5 years
- Car loans: 8.5 to 12 percent, 3 to 7 years
- Education loans: 8.5 to 13 percent, 5 to 15 years
- Business loans: 11 to 22 percent, 1 to 7 years
Why is my bank’s EMI quote different by a few hundred rupees?
Tiny differences usually come from rounding rules, processing fees being added to the principal before EMI calculation, or the bank using simple interest for a partial first month. Numbers from this calculator match standard reducing-balance math used by every Indian bank. If your bank’s quote is significantly higher, ask them to break down where the difference is coming from. They’re required to.
Sources
- Reserve Bank of India: Master Direction on Loans and Advances
- Indian Banks’ Association Code on Home Loan Practices
- SBI, HDFC and ICICI public home loan rate cards (April 2026)