Interest Rate Calculator India

Use our interest rate calculator to find simple and compound interest on loans and investments. Compare rates across banks and loan apps.

Calculate Interest

₹0
Total Interest

Summary

Principal Amount₹1,00,000
Interest Typesimple
Total Amount₹0

💡 Difference

  • • Simple Interest: Calculated only on principal
  • • Compound Interest: Interest on principal + accumulated interest
  • • Compound interest yields higher returns over time

Understanding Loan Interest Rates in India

Interest rates are the single biggest factor in determining what your loan actually costs. A ₹3 lakh personal loan at 12% over 3 years costs you ₹59,600 in interest. The same loan at 18% costs ₹92,200 — that’s ₹32,600 extra, paid entirely because of the rate difference. Yet most borrowers accept the first rate they’re offered without comparing.

In India, interest rates vary wildly depending on who you borrow from, your credit profile, and even the time of year (banks sometimes run promotional rates during festive seasons). Understanding how interest works — and where to find the best rates — can save you lakhs over your borrowing lifetime.

Personal Loan Interest Rates: Banks vs. NBFCs vs. Loan Apps

The Indian lending market has three distinct tiers, and each serves a different audience:

Lender TypeRate RangeMin IncomeTypical Processing
PSU Banks (SBI, BOB, PNB)11% – 14.5%₹25,000+3–7 days
Private Banks (HDFC, ICICI, Axis)10.75% – 16.5%₹25,000+1–5 days
NBFCs (Bajaj, Tata Capital)12% – 22%₹20,000+Same day – 3 days
Loan Apps (Navi, MoneyView, Fibe)14% – 30%₹15,000+Minutes – same day

The trade-off is always between rate and convenience. Banks give you the best rates but take longer and ask for more documents. Loan apps are fast and flexible but charge a premium for that speed. The right choice depends on how urgently you need the money and how strong your credit profile is.

The Flat Rate Trap

This is something every borrower in India should know, and most don’t. Some lenders — especially loan apps and smaller NBFCs — advertise interest rates as “flat” rates. A flat rate of 12% sounds comparable to a bank’s 12% reducing balance rate, but it’s actually nearly double.

With flat rate, interest is calculated on the full loan amount for the entire tenure, even though you’re paying it down every month. With reducing balance, interest is recalculated each month on the outstanding balance. The result: a 12% flat rate translates to approximately 21–22% on a reducing balance basis.

Always ask: “Is this a flat rate or reducing balance rate?” If the lender can’t give you a clear answer, that’s a red flag. RBI-regulated banks always use reducing balance. If you encounter a flat rate offer, use this calculator to see what the effective cost actually is.

How to Get the Best Interest Rate

The rate you see advertised is almost always the “starting from” rate, available only to the most creditworthy borrowers. Here’s what actually determines the rate you get:

  • CIBIL score above 750: This is the single most powerful lever. A 750+ score can get you rates 3–5% lower than someone with a 650 score. On a ₹5 lakh, 3-year loan, that difference saves you ₹25,000–50,000. Check your score here.
  • Salary account advantage: Your salary bank can see your cash flow and transaction patterns. They know you’re reliable before you even apply, which often translates to better rates and pre-approved offers.
  • Compare before committing: Never accept the first offer. Check rates from at least 3 lenders. Even a 0.5% difference adds up significantly over the tenure.
  • Negotiate existing loans: If you’ve been a good customer with on-time payments, you can often call your bank and negotiate a lower rate on an existing loan. This is especially effective for home loans where 0.25% matters a lot.
  • Timing matters: Banks often offer promotional rates during festive seasons (Diwali, year-end). If your loan need isn’t urgent, waiting for these windows can save you money.

Simple Interest vs. Compound Interest — When Does Each Apply?

In everyday financial life in India, here’s where you’ll encounter each:

  • Simple interest: Some small-ticket personal loans from local lenders, certain fixed deposits (if you opt for monthly interest payout instead of reinvestment), and some government schemes.
  • Compound interest: Almost everything else — bank loans (calculated on reducing balance), fixed deposits (reinvestment option), mutual fund returns, credit card interest, and home loans.

For investments, compound interest is your friend — it makes your money grow exponentially over time. For loans, it means you need to be strategic about prepayments and tenure to minimise the total cost.

Use this interest rate calculator to compare exactly how much you’d pay or earn under both simple and compound interest. For monthly EMI at different rates, try our EMI calculator. For the lowest-rate personal loan, compare loan apps on MoneyScore.

Frequently Asked Questions

Common questions about interest calculator

Simple interest is calculated only on the original principal — if you invest ₹1 lakh at 10% for 3 years, you earn ₹30,000 in interest. Compound interest is calculated on the principal plus previously earned interest — the same investment at 10% compounded annually would give you ₹33,100. Over longer periods, this difference becomes much larger. Most loans use reducing balance (a form of compounding), and most investments like FDs and mutual funds use compound interest.
Personal loan interest rates in India currently range from about 10.5% to 30%, depending on the lender and your profile. Public sector banks (SBI, Bank of Baroda) offer 11–14%. Private banks (HDFC, ICICI) offer 10.75–16%. NBFCs (Bajaj Finserv, Tata Capital) charge 12–20%. Loan apps (Navi, MoneyView, KreditBee) typically charge 14–29%. Your CIBIL score is the single biggest factor in determining where you fall within these ranges.
With a flat rate, interest is always calculated on the original loan amount. With a reducing balance rate, interest is calculated on the remaining principal after each EMI payment. A 12% flat rate is roughly equivalent to a 21–22% reducing balance rate. Always ask lenders for the reducing balance rate (also called effective rate) — it's the only honest way to compare offers. All banks use reducing balance; some loan apps still advertise flat rates.
Banks consistently offer lower interest rates (10.5–16%) but have stricter eligibility criteria: higher minimum income, better CIBIL score requirements, and slower processing. Loan apps charge more (14–29%) but approve faster, accept lower incomes, and have simpler documentation. For loans above ₹2 lakh, banks usually save you money. For smaller, short-term loans, loan apps offer convenience that banks can't match.
Five things that directly impact your rate: (1) A CIBIL score above 750 — this alone can save you 3–5% on the rate, (2) Apply through your salary bank where you have a transaction history, (3) Opt for a shorter tenure — some banks offer 0.25–0.5% lower rates for shorter loans, (4) Compare at least 3–4 lenders before accepting any offer, (5) If you have a pre-approved offer from your bank, that's usually the best rate available to you.
Even a small difference in interest rate adds up significantly. On a ₹5 lakh loan for 3 years: at 12%, you pay ₹97,800 total interest. At 15%, that jumps to ₹1,24,400 — that's ₹26,600 more, just for a 3% difference. On home loans over 20 years, a 1% difference can mean ₹5–8 lakh in additional interest. This is why comparing rates isn't just useful — it's essential.
Not necessarily. A lower interest rate with a high processing fee (2–3% of the loan) or mandatory insurance can end up costing more than a slightly higher rate with zero processing charges. Look at the total cost of the loan, not just the headline interest rate. RBI requires lenders to disclose the Annual Percentage Rate (APR) which includes all charges — always ask for this number when comparing.
If your loan is linked to an external benchmark (like the RBI repo rate), changes in the repo rate directly affect your interest rate. When RBI cuts the repo rate, your floating-rate loan EMI should decrease (and vice versa). Fixed-rate loans remain unaffected. Most home loans and some personal loans from banks are now benchmark-linked. Loan app rates are usually fixed for the tenure and don't change with RBI decisions.